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If algae on your aquarium glass bother you, you have probably come across nerite snails at some point.
Zebra, Tiger, Horned and other patterned nerites are known for grazing the thin films of algae that develop on glass and decorations. Their small size, striking shell patterns and suitability for planted aquariums make them popular inhabitants.
However, treating nerite snails solely as algae cleaners is a significant mistake.
Nerites are living animals that can go hungry when food is scarce, develop shell problems in unsuitable water and climb out of an aquarium.
The white dots we see on aquarium glass also do not usually turn into baby snails shortly afterwards, as many people assume.
What exactly are nerite snails? Which algae do they eat? Do they need supplementary food? Can they live with shrimp? Why do the white eggs fail to hatch?
This guide takes a detailed look at nerite care, feeding, water requirements, shell health and reproduction.
What Is a Nerite Snail?
Nerite is a common name used in the aquarium trade for various snails in the family Neritidae.
There is an important distinction here:
Nerite is not the name of a single scientific species.
Animals sold as nerites in aquarium shops may belong to different genera and species.
For example, snails belonging to genera such as Neritina, Vittina and Clithon may be offered under similar trade names.
Their shell patterns, adult sizes, natural habitats and salinity tolerances can differ.
This means it is not always possible to identify a species reliably simply by looking at the stripes on its shell.
General characteristics of nerite snails
They have hard shells with striking patterns.
They graze on glass, rocks, wood and other hard surfaces.
Many commercially available species can be kept in freshwater aquariums.
They can live for extended periods under suitable conditions.
They have an operculum: a structure that can close the shell opening and protect the soft tissues.
Some species have saltwater or brackish-water stages in their reproductive cycle.
In most aquariums, nerite snails graze on surface biofilm and algae rather than consuming healthy plant tissue.
However, species differences and limited food availability mean that identical behaviour should not be assumed for every individual.
Nerite Snail Types and Varieties
Nerites with different colours and patterns are available in the aquarium trade.
Some of these names are commercial descriptions rather than scientific species names.
Zebra Nerite
Zebra nerites are recognised by the alternating dark and light stripes on their shells.
They frequently graze on aquarium glass and hard decorations.
However, not every animal sold as a zebra nerite should be assumed to belong to the same scientific species.
Tiger Nerite
Snails sold as Tiger nerites may have yellow, brown and dark stripes or spots.
Patterns can vary between individuals.
Horned Nerite
Horned nerites are associated with species that may have small projections on the shell surface.
Some species in the genus Clithon, in particular, are sold under this trade name.
The shell projections give the animal its distinctive appearance.
Olive Nerite
The name Olive nerite may be used for snails with plainer shells, generally in olive tones.
This name does not always refer to a single scientific species either.
Which nerite should you choose?
Do not focus solely on shell pattern when choosing an animal.
Where possible, ask the seller these questions:
Is the scientific species name known?
Is the animal currently being kept in freshwater or brackish water?
How long has it lived under its present water conditions?
Has it been observed eating prepared food?
Is there obvious shell erosion or damage?
Learning the species and the conditions under which it has been kept is especially important when its origin is uncertain.
How Large Do Nerite Snails Grow?
Adult size varies by species.
Many nerites commonly found in the aquarium trade can reach a shell length of approximately 1–3 cm.
Some species remain smaller, while others can be larger.
Size alone is not a reliable indicator of age.
Shell growth depends on species, nutrition, mineral conditions and the individual's history.
How long do nerite snails live?
A lifespan of approximately 1–3 years is frequently mentioned in aquarium care discussions.
However, this is not a shared lifespan verified for every species.
The age of an animal at purchase is usually unknown, so it is impossible to predict exactly how long it will live after being added to an aquarium.
Suitable nutrition and stable water conditions are important for long-term care.
What Tank Size Do Nerite Snails Need?
It is not appropriate to determine a nerite snail's aquarium requirements by volume alone.
For these animals, the amount of mature surface available for grazing matters alongside the total volume.
A newly established 100-litre aquarium may have too little biofilm and algae.
By contrast, a smaller aquarium that has been running for a long time and has natural food on its surfaces may provide more suitable conditions for a single nerite.
What is a suitable starting aquarium?
A biologically mature freshwater aquarium of approximately 30–40 litres or more can be considered a practical starting point for a small number of small nerites.
This is not a scientifically established minimum volume.
Actual suitability depends on the species' size, food availability, other inhabitants and the keeper's ability to maintain the aquarium.
How many nerites should you add?
A common mistake is buying many nerites at once when algae increase.
For example, adding 10–15 nerites to a 100-litre aquarium simply to clean algae may create long-term competition for food.
Starting with one or two individuals and observing their feeding is a more controlled approach.
The snails still need food after the algae have declined.
NeoMa recommendation: Base the number of nerites on natural food availability and acceptance of supplementary food, rather than on aquarium volume alone.
Suitable Water Conditions for Nerite Snails
There is no single water recipe for every species sold as a nerite.
Some species tolerate different salinity conditions. The histories of animals in the trade can also vary.
Nevertheless, the following values can serve as a general starting assessment for common commercially available nerites kept in freshwater.
Parameter
General starting approach
Temperature
Approximately 22–26 °C
pH
Neutral or slightly alkaline water is generally preferred
GH
Water containing adequate calcium and magnesium
KH
Stable alkalinity; take care with very low values
Ammonia
Undetectable
Nitrite
Undetectable
Nitrate
As low and stable as reasonably possible
Salinity
Assess according to the species and the individual's history
This table does not represent a common set of experimentally established optimum values for all Neritidae species.
Why does pH matter?
Nerite shells consist largely of structures containing calcium carbonate.
Acidic conditions can promote erosion of the shell surface, especially with prolonged exposure.
This makes pH and alkalinity important for shell health.
However, shell erosion cannot be explained by pH alone.
Mineral composition, the water's saturation state and previous damage must also be considered.
Why monitor GH and KH?
GH provides information about the water's general hardness.
In aquarium practice, KH is used to assess alkalinity.
These two measurements are not the same thing.
When assessing shell health, we should not rely solely on the number displayed by a TDS meter.
Is water from a Caridina aquarium suitable for nerites?
Be especially cautious before adding nerites to bee-type Caridina aquariums maintained with low KH and acidic water.
Water prepared for Crystal Red or Taiwan Bee shrimp may not be suitable for the shell health of every nerite species.
It is not appropriate to raise a Caridina aquarium's GH, KH or pH suddenly just to accommodate a nerite.
In that situation, keeping the nerite in a separate aquarium with suitable conditions may make more sense.
Which Algae Do Nerite Snails Eat?
Algae grazing is one of the main reasons nerite snails are popular.
However, expectations need to be realistic.
Nerite snails do not eat every type of algae with equal enthusiasm.
Their grazing also does not remove imbalances in aquarium lighting, nutrients and maintenance.
Thin green algae films
Thin green films on glass and hard decorations provide surfaces on which many nerites can graze.
Cleaned tracks on the glass may indicate that a snail has been feeding on the surface.
Brown surface films
Brown films, especially those seen in new aquariums and often associated with diatoms, may be eaten by some nerites.
However, there is no guarantee that every individual will consume the same amount.
Biofilm on hard surfaces
Nerites do not feed exclusively on algae visible to the naked eye.
Microorganisms and organic films on surfaces can also form part of their grazing activity.
Green spot algae
Nerites may be seen grazing on some green spot algae on hard surfaces.
However, complete removal of thick, hard or firmly established growth should not be guaranteed.
Filamentous algae
Nerite snails should not be regarded as a definitive solution to filamentous algae problems.
Long, dense filamentous algae may not be among the main foods preferred by many nerites.
Black beard algae
It is not appropriate to assume that resistant algae such as black beard algae will be eaten regularly and effectively by nerites.
Algae grazing table
Surface or algae type
General assessment
Thin green surface film
Frequently grazed
Diatom-rich brown film
May be eaten by some individuals
Biofilm on hard surfaces
An important natural food source
Green spot algae
Varies by species and surface
Long filamentous algae
Not a reliable solution
Black beard algae
Not a reliable solution
Healthy living plant tissue
Generally not the target food
Important: This table is not an experimentally verified ranking of food preferences for every commercial nerite species. Actual consumption in the aquarium must be observed.
Can Nerite Snails Live Without Algae?
This is one of the most important questions in nerite care.
An aquarium's glass may look completely clean.
However, that does not mean its surfaces contain no biofilm at all.
Conversely, a newly established aquarium with thoroughly cleaned decorations and insufficient biofilm development may provide too little food for a nerite.
A large number of nerites bought to remove algae may eventually exhaust their natural food supply.
How can you tell whether a nerite is starving?
There is no single definitive behavioural sign of starvation.
However, the following circumstances can be assessed together:
A prolonged lack of sufficient grazing surfaces.
Prepared foods remaining uneaten.
An individual appearing progressively weaker or in poorer condition.
Clear changes in movement and attachment to surfaces.
Intense food competition with other aquarium inhabitants.
These signs can also be associated with other health or water-quality problems.
We should therefore not diagnose starvation simply because a snail is motionless.
What Do Nerite Snails Eat?
Surface algae and biofilm are important parts of nerite snails' natural diet.
However, natural resources in an aquarium may not always be sufficient.
Suitable supplementary feeding options can therefore be considered.
Algae-based tablets and wafers
Some sinking foods containing spirulina or other algal ingredients can be tried.
However, acceptance of prepared tablets is not guaranteed for every nerite.
Leaving food in the aquarium does not demonstrate that the snail is actually eating it.
Grazing stones
Suitable stones with algae and biofilm developed in a mature aquarium can provide a natural feeding surface for nerites.
However, when transferring a stone from another aquarium, consider the risk of introducing unwanted organisms, pathogens or contaminants.
Vegetables
Some snails may be observed grazing on particular vegetables.
However, nerites should not be assumed to accept vegetables consistently.
Use small portions when trying vegetables, and do not leave uneaten pieces long enough to impair water quality.
Dried leaves
Biofilm can develop on leaf surfaces.
However, adding a leaf does not in itself mean that adequate nerite nutrition has been provided.
Consider the type of leaf, its cleanliness and its effect on water chemistry.
How often should you feed them?
There is no single feeding schedule suitable for nerites in every aquarium.
A mature aquarium rich in natural food may require less supplementary feeding.
Where natural food sources are limited, suitable food options should be tried.
NeoMa's practical approach: First observe what the snail actually eats. Remove uneaten food regularly. Do not assume the animal is adequately nourished simply because you have added food.
Why Do Nerite Shells Erode?
Erosion of the shell surface is an important problem that can arise when keeping nerite snails.
Whitening, pitting or loss of the shell surface may be visible.
However, it is not appropriate to explain all of these signs solely as calcium deficiency.
Acidic water conditions
Low pH and unsuitable water chemistry can promote dissolution of shell surfaces containing calcium carbonate.
Prolonged exposure is particularly important.
Mineral balance
Calcium and other minerals are important for shell formation.
However, a GH reading alone does not establish that all conditions necessary for the shell are suitable.
Old damage
A nerite may already have shell erosion when you purchase it.
This damage may have occurred before it entered its current aquarium.
Can the shell recover?
An important distinction is needed here.
An eroded area of old shell does not simply return to its original appearance when calcium is added to the water.
Under suitable conditions, a snail can produce new shell material. However, complete disappearance of losses from the old outer surface should not be expected.
It is therefore important to examine the newly growing shell as well as the old damage.
What should you do if you notice a shell problem?
Measure pH.
Check GH and KH.
Review recent water changes.
Compare old shell areas with new growth.
Observe feeding and nutritional condition.
Assess whether the species is suited to its current water conditions.
Do not add calcium, salt or pH adjusters at random before identifying the cause.
Why Do Nerite Snails Climb Out of the Aquarium?
Nerite snails may occasionally move above the waterline.
In some species, this can be associated with normal movement and habitat use.
We therefore cannot say that every nerite above the waterline is necessarily escaping poor water conditions.
However, frequent and unusual attempts to leave warrant checking aquarium conditions.
Possible reasons
Natural behaviour of the species.
Unsuitable water conditions.
Searching for food.
Adjustment to a new environment.
The physical layout of the aquarium.
How can you prevent escape?
Check the aquarium lid and any openings.
Pay particular attention to:
Filter hose passages.
Cable gaps.
Lid edges.
Open rear sections.
Decorations close to the waterline.
However, completely sealing an aquarium in a way that prevents gas exchange is not an appropriate escape-prevention measure.
What should you do if you find a nerite outside the aquarium?
First assess carefully whether it is alive.
If there is no obvious deterioration of the body tissue and the operculum is present, the snail may still be alive.
However, the shell alone cannot provide a definitive answer.
Do not pull the snail forcibly from its shell.
If it is believed to be alive, it can be returned safely to the aquarium with attention to suitable water conditions.
Recovery is not guaranteed for an individual that has been outside for a long time.
Will a Nerite Snail Die If It Falls Upside Down?
Nerite snails can sometimes fall from decorations or become stranded upside down.
Healthy individuals may be able to right themselves under some conditions.
However, the same success should not be assumed for every species or individual.
A snail that has remained upside down for a long time can be turned over carefully and appropriately.
Avoid damaging its soft tissues when doing so.
What should you check if it repeatedly falls upside down?
Is the current too strong?
Is the decoration's surface suitable?
Can the snail attach to the surface?
Are there problems with water parameters?
Is there obvious weakness in its general movement?
Repeated falling and inability to attach may involve more than a physical positioning problem.
Which Fish Can Live With Nerite Snails?
Under suitable water conditions, nerite snails can be kept with many peaceful freshwater fish.
However, fish behaviour towards snails can vary between species and individuals.
Small tetras and rasboras
Many small, peaceful tetra and rasbora species can share an aquarium with nerites.
However, the water conditions must suit all inhabitants.
Livebearers
Keeping nerites with platies and some other livebearers may be possible.
Food competition and water parameters should still be assessed.
Angelfish
Keeping nerites in the same aquarium as angelfish may be possible in some systems.
However, observe whether the fish show interest in the snail's exposed tissues.
Cichlids
Some cichlid species may harass or prey on snails.
Safe compatibility with all cichlids should therefore not be assumed.
Snail-eating fish
Species known to eat snails are not suitable tank mates for nerites.
Keeping nerites with fish capable of preying on them is particularly inadvisable.
Can Nerite Snails Live With Shrimp?
Under suitable conditions, nerite snails can also be kept in shrimp aquariums.
However, two issues must be distinguished:
Behavioural compatibility and water chemistry compatibility.
Neocaridina and nerites
Keeping nerites in many Neocaridina aquariums may be possible.
However, the water conditions must suit both groups, and sufficient food must be available.
Shrimp and nerites may graze on the same surfaces, creating food competition.
Caridina and nerites
The situation requires more careful assessment in bee-type Caridina aquariums maintained with soft, acidic water.
For example, adding a nerite to a Taiwan Bee colony maintained at very low KH and low pH may be unsuitable for the snail's shell health.
The fact that shrimp do not attack the snail is therefore not sufficient justification for keeping them together.
Amano shrimp and nerites
They may be kept together under suitable water conditions.
However, Amano shrimp can consume food quickly, potentially limiting the nerite's access to supplementary food.
NeoMa recommendation: When keeping nerites and shrimp together, assess the adequacy of natural food sources as well as whether the animals harm each other.
Do Nerite Snails Eat Plants?
Nerite snails are generally not known for consuming healthy aquarium plants.
They often graze on algae and biofilm developing on leaf surfaces.
However, seeing a snail on a leaf does not mean that it is eating the plant.
If there are holes in plant leaves
Holes or signs of melting in leaves may be associated with:
Nutrient deficiencies.
Ageing leaves.
The plant's adjustment to a new environment.
Physical damage.
Feeding behaviour of other animals.
Examine the plant's overall condition before holding the nerite directly responsible.
Why Do Nerite Snails Leave White Eggs?
One of the most common sights for nerite keepers is the appearance of small white dots on decorations.
These dots may be especially noticeable on wood, rocks, glass and filter equipment.
In most cases, they are egg capsules.
There is an important detail here:
The white structure we see is not, in itself, a developed baby snail.
Depending on the species' reproductive biology, egg capsules may contain one or more embryos.
Do nerite eggs hatch in freshwater?
The answer depends on the species.
The reproductive cycle of many nerite species in the aquarium trade is not completed entirely within a freshwater aquarium.
In some species, larvae that hatch from the eggs need brackish or saltwater conditions to develop.
However, applying the same salinity and development time to all nerite species is not appropriate.
What does scientific research say?
A study published in 2024 on Clithon diadema examined embryonic development and hatching under different salinity conditions.
The study showed that although embryonic development could be observed in freshwater in this species, salinity was important during hatching.
However, we cannot use this finding as a universal breeding recipe for every nerite species.
Can nerite snails reproduce in an aquarium?
They can lay eggs.
However, egg laying and successfully raising young are different processes.
Species requiring larval development, in particular, need separate rearing conditions, suitable food and monitoring of developmental stages.
A large number of white capsules in an aquarium therefore does not mean that many baby nerites will appear shortly afterwards.
How Are Nerite Snails Bred?
Breeding nerites can differ from breeding common freshwater snails.
For species requiring larval development, simply moving the eggs into a separate container is not enough.
Successful breeding requires establishing:
The scientific species of the animal to be bred.
Suitable maintenance conditions for the adults.
The developmental requirements of the egg capsules.
The environmental conditions required for hatching.
The salinity needed by the larvae.
A method of feeding the larvae.
Metamorphosis and the juvenile snail stage.
Transition to suitable water conditions.
Each of these stages can vary between species.
Important: Do not add salt to the main aquarium containing fish and shrimp in an attempt to hatch nerite eggs.
Breeding attempts should be planned in separate systems with animals whose scientific species has been verified.
How Do You Remove Nerite Eggs?
Nerite egg capsules can adhere firmly to hard surfaces.
The white dots can be particularly noticeable on dark wood and rocks.
Some aquarium owners find this visually undesirable.
Capsules on glass
Capsules on glass can be removed carefully with an appropriate aquarium glass-cleaning tool.
Take care not to scratch the glass.
Capsules on rocks
Depending on the rock's structure, cleaning can be attempted with a soft brush or one of suitable stiffness.
However, assess the risk of damaging the surface.
Capsules on wood
Complete removal of capsules from wood can be more difficult.
Aggressive scraping can damage the decoration's surface.
Capsules on living plants
Do not scrape living plants aggressively.
Avoiding leaf damage may be more important than removing every egg capsule.
Are the capsules harmful?
Their presence alone does not mean there is a health problem in the aquarium.
The main issue is often appearance.
However, the number of capsules and the desire to remove them will vary according to the aquarium owner's preferences.
Is My Nerite Snail Dead or Resting?
Nerite snails can sometimes remain motionless for extended periods.
This alone does not mean that they are dead.
However, prolonged inactivity should be assessed, especially when accompanied by other signs.
Signs suggesting that it may be alive
The operculum is closed or moving in a controlled manner.
Body tissue remains intact.
Its position changes over time.
It can attach to a surface.
Signs that increase concern about death
Obvious tissue deterioration.
A strong smell of decay.
The body has lost its normal appearance.
Other serious signs accompanying prolonged inactivity.
However, no single sign provides a definitive diagnosis.
What should you do?
Do not try to force the snail out of its shell.
First assess the aquarium's water conditions.
If several animals are behaving abnormally, check ammonia, nitrite and oxygenation.
A snail confirmed to be dead should be removed to prevent water pollution.
Medicines and Chemicals Around Nerite Snails
Nerite snails are invertebrates.
We therefore cannot assume that every medicine or algae-control product used for fish is safe for nerites.
Some copper-containing medicines and other chemical treatments involving invertebrates can pose serious risks.
However, product safety should not be reduced solely to whether copper appears among the ingredients.
The active substance, concentration, exposure time and target species matter.
Before using a medicine
Check the product's active ingredient.
Review compatibility information for nerites and other invertebrates.
Plan a separate treatment aquarium if necessary.
Do not increase doses by guesswork.
Consider possible effects on biological filtration in the main aquarium.
“Safe for fish” does not mean safe for nerite snails.
The Most Common Nerite Care Mistakes
1. Adding too many nerites to a newly established aquarium
Immature surfaces may not provide enough natural food.
2. Viewing nerites solely as cleaners
Their need for food does not disappear when algae decline.
3. Assuming they will eat every type of algae
Nerites are not the solution to every algae problem.
4. Failing to check consumption after offering prepared food
Adding food does not prove that the snail has eaten it.
5. Assuming shell erosion is only calcium deficiency
pH, alkalinity and other water conditions must be assessed together.
6. Adding nerites to a Caridina aquarium without checking water compatibility
Very low KH and acidic water may be unsuitable for some nerites.
7. Overlooking gaps in the aquarium lid
Nerites can move above the waterline.
8. Assuming white egg capsules will definitely hatch
The development cycle of many commercial nerite species is not completed in freshwater.
9. Adding salt to the main aquarium to hatch eggs
This can create water conditions unsuitable for other inhabitants.
10. Failing to check whether medicines are suitable for invertebrates
A product that is safe for fish may be unsafe for snails.
What Should You Check During the First Week After Adding a Nerite?
Regular observation during the first week helps you assess newly purchased nerites.
Check
What should you observe?
Day one
Attachment, general movement and condition after transport
Day two
Grazing on glass and decorations
Day three
Changes in position and access to natural food
Day four
Shell condition and water parameters
Day five
Actual consumption if prepared food is being tried
Day six
Attempts to leave the aquarium
Day seven
Overall movement, feeding and care assessment
This table is not a compulsory daily behaviour schedule.
Not every snail is expected to move equally much every day.
The aim is to create observation records that can be compared if a problem arises.
Frequently Asked Questions
Do nerite snails eat algae?
Yes. Many nerite species graze on thin algae films on glass and decorations. However, they do not eat every type of algae.
Do nerite snails eat black beard algae?
They should not be assumed to remove black beard algae reliably.
What size aquarium does a nerite snail need?
There is no definitive universal minimum volume. A mature aquarium of approximately 30–40 litres with sufficient feeding surfaces can be a practical starting point for a small number of small nerites.
What do nerite snails eat?
Surface algae and biofilm are their main food sources. Some individuals may also accept suitable prepared foods.
Do nerite snails need supplementary food?
They may need it if natural food sources are insufficient. However, check that the food offered is actually eaten.
Do nerite snails eat plants?
They generally graze on algae and biofilm on leaf surfaces rather than targeting healthy plant tissue.
Why does a nerite snail leave the aquarium?
This can be related to natural behaviour. However, water conditions and food availability should be checked if escape attempts are unusual or persistent.
Will a nerite snail die if it falls upside down?
Being upside down does not always mean death. However, an individual that remains upside down for a long time or cannot right itself can be carefully returned to a suitable position.
Why do nerite snails lay white eggs?
Females can deposit egg capsules on hard surfaces. These capsules do not mean that young will necessarily develop in freshwater.
Do nerite eggs hatch in freshwater?
It depends on the species. The reproductive cycle of many commercial nerites is not completed entirely within a freshwater aquarium.
How do you remove nerite eggs?
They can be removed carefully from glass and hard decorations with suitable tools. Living plants should not be damaged.
Can nerite snails live with shrimp?
They can under suitable conditions. However, water compatibility needs careful assessment, particularly in acidic, very soft-water Caridina aquariums.
Why is my nerite snail's shell turning white?
Possible causes include old shell damage, erosion and water chemistry. Calcium deficiency should not be assumed to be the only cause.
Do nerite snails multiply?
They can lay eggs. However, successfully raising young may require special conditions suited to the species' developmental cycle.
How can you tell whether a nerite snail has died?
Tissue deterioration, a noticeable smell of decay and prolonged inactivity should be assessed together. No single sign provides a definitive answer.
Conclusion: Nerite Snails Are Living Aquarium Inhabitants, Not Cleaning Tools
Nerite snails are interesting inhabitants of planted aquariums, both for their appearance and their grazing behaviour.
They can help control some algae films developing on glass and decorations.
However, that benefit does not mean that all their care needs have been met.
Successful nerite care rests on mature feeding surfaces, suitable water chemistry, sufficient food, a safe aquarium layout and regular observation.
Water compatibility should not be overlooked, especially in sensitive shrimp aquariums.
White egg capsules often indicate natural reproductive behaviour that surprises the aquarium owner. However, egg laying and successfully raising young are not the same thing.
By regarding nerites as animals with their own needs rather than simply helpers that clean algae, we can build a healthier aquarium system.
You can monitor their long-term condition in NeoMa by regularly recording water parameters, new livestock additions and care observations.
Sources and Further Reading
Scientific Reports (2021). Research examining the radula and surface-feeding behaviour of Vittina turrita. The algae paste used in the study was an experimental feeding method; it does not demonstrate that all nerites accept commercial foods.
Huang and colleagues (2024). Research examining egg development and the effects of salinity in Clithon diadema. Aquaculture Reports. DOI: 10.1016/j.aqrep.2024.102145.
Scope of the sources: Species-specific findings from scientific research must not be generalised to all commercial nerite species. The tank volumes, temperatures and care recommendations in this guide are starting assessments for general aquarium practice, rather than experimentally verified optimum values for every nerite species.
