3 Easy Steps To Hatch Nerite Snail Eggs

Last Updated on 2023-10-18

Breeding nerite snails can be a bit tricky, but it’s quite similar to hatching other freshwater species. As long as you keep the eggs in the right kind of water, their development should go smoothly.

So, let’s talk about hatching nerite snail eggs and what to look out for. Keep reading to find out everything you need to know!

Key Takeaways:

  • Recognizing betta fish difficulty in breathing: Watch for panting, rapid body swelling and shrinking.
  • Observing abnormal breathing patterns: Faster and more intense breathing than normal indicates breathing difficulty.
  • Identifying signs of distress: Abnormal positioning at the water surface or bottom may signify breathing challenges.
  • Understanding betta fish anatomy: Betta fish have a labyrinth organ enabling them to breathe air briefly.
  • Noticing gasping behavior: Betta fish may gulp air at the water surface when struggling to breathe.

You can ensure that your nerite eggs will hatch in ideal conditions by maintaining the salinity at just the right amount using brackish water. This will allow the eggs to develop normally. However, you should be aware that nerite snails have a high reproductive rate, which makes it challenging to keep up with their offspring.

How to Hatch Nerite Snail EggsFollow specific steps to create a brackish water tank with appropriate salinity.
Time of HatchEggs can take anywhere from 24 to 48 hours to hatch, affected by water salinity.
Fertility TestingExamine eggs for signs of damage, size, and color to determine fertility.
Egg AppearanceNerite snail eggs resemble tiny sesame seeds, white or opaque, turning dark when fertilized.
Nerite Snail ReproductionEgg-laying frequency varies based on age, sex, diet, and water conditions.

How Long Does It Take For Nerite Snail Eggs To Hatch?

After the eggs have been laid, the process of hatching can take anywhere from twenty-four to forty-eight hours. The degree of salinity of the water may have an effect on the amount of time required. The eggshells of nerites gradually transform from a bright yellow to a more muted shade of yellow.

When this occurs, you can anticipate that they will hatch very soon. In most cases, this takes place three weeks after the eggs have been laid. It takes approximately 18–25 days, on average, from the time the eggs are laid until the time the young emerge from their shells.

How To Tell If Nerite Snail Eggs Are Fertile

When it comes to the eggs of nerite snails, looks can be deceiving. Just because they appear to be normal doesn’t mean that they are actually able to produce fertile offspring. There are a few different tests that can be done in order to establish whether or not the eggs of a nerite snail are fertile.

  • The first thing that must be done is a thorough inspection of the eggs for any signs of damage. Damage to the eggs that can be seen may be an indication that they are not fertile and, therefore, will not hatch.
  • Another factor that should be taken into consideration is the size of the eggs. If the eggs are noticeably smaller than the norm, it’s possible that they aren’t fertile and won’t develop into babies.
  • Finally, you can examine the eggs to see if there are any indications that they have been fertilized. If the eggs are yellow or green in color, this may indicate that they are in the process of being fertilized and will soon hatch.

So while these pretty little snail eggs may appear perfect on the outside, it’s important to perform these tests to ensure successful hatching. After all, nobody wants to waste time and energy on potentially infertile eggs. Better safe than sorry!

hatch,nerite snails

How Often Do Nerite Snails Lay Eggs

When it comes to nerite snail reproduction, there’s no one-size-fits-all answer. These delightful little mollusks can sometimes lay eggs every other day, while others may take three days in between laying sessions. Age, sex, and diet all play a role in their reproductive habits. 

Another big factor in egg-laying frequency is water conditions – snails tend to lay more eggs when the quality and temperature of the water are optimal.

Tank setup also plays a role – snails need calcium in their diet to lay eggs, so keeping them in a tank with plenty of algae or giving them calcium supplements can increase the likelihood of an egg-laying frenzy. 

While some aquarists have luck with a single snail constantly laying eggs, others end up with almost none at all. In the end, it’s all just part of the beautiful unpredictability that makes nerite snails such fascinating pets. 

How Many Eggs Do Nerite Snails Lay?

The females lay their egg capsules on any surface, including leaves, driftwood, and even the shells of other snails, after mating.  Almost every reference book on snails states that female Nerites lay eggs. This is obviously not the case. Those little round things you think are nerite eggs are actually capsules containing dozens of tiny eggs.

Oval in shape, the egg capsules are minuscule in size (1-1.5mm long and about 1mm wide). A thin membrane protects the eggs within the capsules. The average number of eggs in a capsule is 68. (ranging from 32-106). Surprise!

What Do Nerite Snail Eggs Look Like?

There are a lot of interesting things about nerite eggs, and one of the biggest ones is how they look. Eggs laid by nerite snails resemble tiny sesame seeds and will stick to any smooth surface in your aquarium.

It’s important to note that the white bumps you see aren’t actually snail eggs but rather tiny capsules that contain anywhere from 30 to 100 of the real eggs.

They are typically white or opaque in color, making them stand out against dark backgrounds such as tank filters, logs, or tank walls. On the other hand, once they’ve been fertilized, they’ll darken, proving that an embryo is developing inside.

Eggs laid by the Nerite Snail are very tough and must be scraped off before they can be removed from the aquarium.

The individual nerite eggs can only be seen with a microscope, as they are invisible to the naked eye. Due to the way snails deposit their eggs, clumps of nerite eggs are easy to spot.

How To Hatch Nerite Snail Eggs

It has been estimated that there are over 200 distinct species of Nerite snails, not all of which have had their reproductive processes thoroughly studied. Fortunately, most Nerite snails found in pet stores have been studied extensively by scientists. Following the right method will ensure that your Nerite eggs hatch and grow into mature snails.

So, here’s how to get the eggs of Nerite snails to hatch:

  1. Create a second aquarium with salt water. If you have a hydrometer, check the salinity; when the reading (SG or Specific Gravity) is between 1.002 and 1.005, you can stop adding salt. You must use marine salt (not aquarium salt) to make the brackish water.
  1. Make sure not to use a sponge or other filtration medium in the tank. This is because newly hatched snails will be very small and could easily be swallowed by the water filter.
  1. Start the new tank off with a few snails. Assuming a ratio of 1:1, a population of between 5 and 7 should be sufficient to guarantee a mix of sexes.
  1. When the snail larvae have developed into adults, put the adults back into the freshwater aquarium.
  1. If there are no algae in the aquarium, feed the babies twice or thrice daily. Nerite larvae can be fed spirulina powder or phytoplankton.
  1. After a period of 30 days, the fully developed larvae will be ready for transfer, at which point they will be released into the freshwater aquarium.

Nerite snails are a fun new addition to your underwater world. Just be sure to keep an eye on population levels, as nerite snails are known for their high reproduction rate.

Here’s how to create a brackish water tank with appropriate salinity for your nerite snails and their eggs.

  • In order to use water from the tap, you must eliminate the chlorine that is present in the water first.
  • The dechlorinated water must be filled into a bucket.
  • It is recommended to use 2 1/2 to 3 tablespoons of marine salt per gallon of water. Any value between 1.005 and 1.015 SG is acceptable.
  • Make sure the salt is fully dissolved by stirring the water and waiting about half an hour.
  • It is necessary to re-evaluate the salinity using either a hydrometer or a refractometer.
  • Continue adding table salt to the mixture in order to achieve the desired salinity.

The substrate is also crucial when setting up a brackish tank. To mineralize the water, you can use things like cuttlebones, coral, and other calcium supplements. The embryos will benefit greatly from these nutrients once they have hatched. Aim for a calcium content of 350–450 ppm.

Maintain a temperature of 72 to 78 degrees Fahrenheit. The ideal concentration of ammonia and nitrite is 0 ppm. Maintain a nitrate concentration of no more than 20 ppm. Optimal carbonate hardness (KH) lies between 8 and 12 degrees (dKH).

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How Do You Raise Baby Nerite Snails?

When the eggs hatch, the veligers are released into the water. The larvae of snails that develop in the water are called veligers. They are still very young and very small. A nerite snail is a low-maintenance species, and its larvae are easy to care for. However, it is important to know how to make your snail at home in its aquarium. 

In order to achieve this, you must learn about the ideal water conditions, diet, tank size, and even setup.


There is no difference in the diet between an adult and a baby nerite snail. They will primarily feed on the algae in your tank. You can also add sinking algae wafers and blanched vegetables like zucchini, spinach, and carrots to the diet if there isn’t much algae growth. 

Even nerite veligers are drawn to the brightness of the bulb. So, point a flashlight or an adjustable lamp in the far corner of the aquarium to attract them there. Once everyone is in their proper spot, it’s much simpler to feed them all at once. This method will allow you to feed them more efficiently.

Tank and Water Requirements

The only thing that is necessary is a tank that is between one and five gallons in size. Prepare some brackish water with a salinity level of 5–10 ppt. A rise in temperature to 80 and 85 degrees Fahrenheit can help to stimulate the Nerite snail veligers’ metabolism as well as their development.

Water Changes

In most cases, larvae shouldn’t produce a significant amount of bioload. Therefore, there is no reason for doing it if the parameters of your water are satisfactory enough. Continue using the light trick to move any larvae to one side and siphon from the other side if you have nitrates; this may help reduce the amount of food that is wasted.


In most cases, there is no requirement for the use of any kind of mechanical filtration. It’s possible that they’ll get sucked into it. It will not be stopped by covering the inputs with a net or anything else of a similar nature. They’re just way too tiny. A rate of one or two bubbles every one or two seconds is considered to be the ideal for an air bubble line.

Check out this video by More Aquarium Co-Op about Care Guide for Nerite Snails:

How To Clean Nerite Snail Eggs

Cleaning and getting rid of the eggs of the nerite snail is a tedious and sometimes frustrating process, so you’ll need to set aside some time for it. We know you want to get rid of the snail eggs on the glass of your aquarium, but we advise against using bleach or any other cleaning solution.

The treatment may eliminate the snail eggs and prevent their development, but it may also harm any fish that are subsequently reintroduced to the tank. To that end, we recommend the following strategies:


Most snail species reproduce asexually, so the fact that Nerite snails don’t is good news for people who keep snails as aquarium pets. The males are responsible for fertilizing the eggs once the females have laid them.

Reproduction of nerite snails can be managed by separating the sexes to prevent mating. Not all owners want female Nerites, so they avoid buying them as pets.

Sexual Differences

Male and female snails need to be kept apart, so learning how to tell them apart is essential. Males can be identified by the antenna on their right eye, which they use to fold a muscle over and make themselves look more phallic.

The problem is that such an inspection could be laborious and time-consuming to carry out. To be able to tell males from females in this way, the snails must be fully mature.

Elimination By Hand

You should take the time to manually remove snail eggs from your aquarium. If the eggs are stuck to the side of the aquarium, this task becomes incredibly simple. The clutch can be detached from the window using a thin card or razor blade. To finish them off, you can either submerge them in vinegar or squash them.

If the snail eggs are attached to a piece of driftwood or a rock, you may need to get rid of it. Eggs can be removed from both driftwood and rock by washing or scraping them off. Driftwood can be boiled if absolutely necessary.

Biological Methods

Snail eggs are a great source of protein, making them a popular food for many types of freshwater fish and invertebrates. Problems may arise because many of these egg-eating species also enjoy snacking on snails, both young and old. There shouldn’t be any problems for grown snails as long as they’re bigger than the fish.

You may have to eliminate them entirely, as harsh as that sounds, to protect your other aquatic animals. The water that the Nerite snail eggs have polluted may be hazardous for your other aquatic animals.


Do Nerite Snails Breed Easily?

Nerite snails are difficult to breed. These snails have a complicated reproductive process, requiring specific conditions to reproduce successfully. They need brackish water to hatch their eggs; even then, the larvae are challenging to raise. 

Are Nerite Snails Asexual?

Nerite snails, in contrast to most other species of snails, do not reproduce in an asexual manner. The male nerite snails are responsible for fertilizing the eggs laid by the female nerite snails. Nerite snails are able to reproduce in freshwater tanks; however, the eggs laid in these tanks will not hatch because the larvae require brackish water in order to survive. 

Are Nerite Snails Easy To Breed?

It can be challenging to breed nerite snails in the tank because of the varying water conditions. Saltwater or brackish water, which is only slightly saltier than saltwater, is the ideal environment for the reproduction of snails. You have to give a nerite snail some brackish water if you want to have any chance of successfully breeding it.

Will Nerite Snail Eggs Hatch In Freshwater?

In freshwater, they can only lay eggs that will never hatch. Either put your nerite snail in a tank with brackish water or switch out the freshwater for brackish. When changing the water, do so gradually over several days to allow the snail to become acclimated to the salty solution.


The thought of hatching snail eggs can be daunting, but with a bit of patience and attention to details, you too, can become a snail-breeding master. Many aquarium enthusiasts opt for nerite snails, known for their beautiful shells and helpful algae-eating abilities.

While these little guys might seem low maintenance, it’s important to give them the proper conditions for their eggs to hatch successfully. 

By following simple steps, you should be on your way to having a whole new army of snails ready to take over your tank. Just make sure you keep an eye on them – they may start multiplying faster than you anticipated!




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