Mystery Snail Eggs Fell in Water (3 Major Causes & Solution)

Why do mystery snail eggs fell in water? Mystery snails are popular in home aquariums for their unique appearance and peaceful nature. However, one common issue many aquarium owners face is the accidental falling of mystery snail eggs into the water. 

This can be concerning for many reasons, as it may lead to the eggs not hatching or the baby snails not surviving.

In this article, we will discuss the three major causes of mystery snail eggs falling into the water and provide solutions to prevent this from happening.

Gold Inca snail

We will examine factors such as improper egg placement, water quality issues, and the behavior of other aquarium inhabitants that may contribute to the eggs falling into the water.

Understanding these causes is essential for ensuring the successful hatching and survival of mystery snail eggs.

By addressing these issues, aquarium owners can create a safe and conducive environment for developing mystery snail eggs, ultimately leading to a thriving aquarium ecosystem. 

Why Do Mystery Snail Eggs Fall Into The Water? Will They Hatch?

Mystery snail eggs fall into the water because the female snail lays eggs above the water line, eventually falling into the water as they dry out and weaken.

Once in the water, the eggs will hatch under the right conditions. Mystery snails require relatively warm temperatures, typically around 68-84°F, to hatch eggs.

Infertile Mystery Snail Eggs

Depending on the temperature and humidity levels, the hatching process can take anywhere from 10 days to almost a month. It’s important to note that mystery snails lay their eggs above the water line because they require air to develop correctly.

Therefore, the eggs must end up in water, where they can absorb the necessary moisture to thrive. With proper care and ideal environmental conditions, mystery snail eggs have a good chance of hatching and producing a new generation of snails. 

3 Causes Mystery Snail Eggs Fell in Water & Solutions

There are a few possible causes for mystery snail eggs falling into the water. Firstly, the female mystery snail might have laid the eggs above the water line and may have fallen in due to heavy rains or other disturbances. Alternatively, other snails or fish in the tank could have dislodged the eggs.

Finally, if the water conditions are not optimal, the female snail may have felt the need to release her eggs prematurely, causing them to fall into the water.

To prevent mystery snail eggs from falling into the water, providing a secure surface for the female to lay her eggs, such as a piece of Styrofoam or a breeder box, is essential.

Regularly checking and maintaining water conditions, including pH, temperature, and water quality, can also help prevent premature egg laying. Additionally, monitoring tank mates and their interactions with the snails can reduce the likelihood of eggs being dislodged. 

 Here are the 3 most common causes of mystery snail eggs falling into the water and the solutions for each:

  1. Accidental detachment: Mystery snail eggs are attached to a stalk or substrate by a mucus-like substance. Sometimes, this attachment can break accidentally, causing the eggs to fall into the water. This is usually not a cause for concern, as the eggs are still viable and will hatch if the water conditions are good.
  2. Stress or poor water quality: If your mystery snails are stressed or the water quality is poor, they may detach their eggs prematurely. Several factors, such as overcrowding, incompatible tankmates, sudden changes in tank water parameters, or high levels of ammonia, nitrite, or nitrates, can cause this. If you think this is the case, improve the water quality and reduce stress on your snails.
  3. Infertile eggs: Sometimes, mystery snails will lay infertile eggs. These eggs will not hatch and will eventually turn white and decompose. If you see a lot of white eggs in your tank, they are likely infertile. If you wish, you can remove the eggs, but they will not harm your fish or other tank inhabitants.

Here are some additional tips for caring for mystery snail eggs:

  • Maintain good water quality: This is essential for the survival of both adult snails and their eggs. Aim for a pH of 7.0-8.0, a hardness of 8-12 dGH, and a 72-78 degrees Fahrenheit temperature.
  • Provide a calcium source: Mystery snails need calcium to build their shells. You can add calcium to your tank using cuttlebone, crushed coral, or Tums tablets.
  • Feed your snails a healthy diet: Mystery snails are omnivores and will eat various foods, including algae, vegetables, and fish flakes.
  • Remove predators: If you have fish that eat snails, such as loaches or puffers, remove them from the tank before adding mystery snails or their eggs.

Following these tips can help ensure that your mystery snail eggs hatch and baby snails thrive.

Can Snail Eggs Survive in Water?

Snail eggs are commonly laid in moist environments, such as in the soil or on the surface of plants. While some species of snail eggs can survive in water, others cannot.

The ability of snail eggs to survive in water depends on the specific species and their adaptations to environmental conditions.

Some snail eggs have a protective gelatinous coating that allows them to survive in water for an extended period of time, while others may not have this adaptation and can dry out and die if submerged in water.

Water quality and temperature can also play a role in the survival of snail eggs in water. High levels of pollutants or low oxygen levels can negatively impact the survival of snail eggs.

While some snail eggs can survive in water, it is essential to consider the specific species and environmental factors that may influence their ability to do so. 

How do you prevent mystery snail eggs from falling into water?

There are two main approaches to preventing mystery snail eggs from falling into the water:

1. Control the Egg Laying Location:

  • Keep the water level low: Mystery snails lay their eggs above the water line. Maintain a water level at least 1.5 inches (4 cm) below the top of the tank to discourage them from reaching the rim.
  • Provide egg-laying surfaces outside the water: Offer surfaces like floating plants, leaves, or even plastic wrap placed on the edge of the tank above the water level. The snails will likely choose these to lay their eggs on.
  • Remove clutches promptly: Regularly check for egg clutches on tank walls, decorations, or the lid. Carefully remove them with your fingers or a utensil before they fall into the water.

2. Hatch the Eggs Separately:

  • Let the clutch harden: Allow the egg clutch to solidify for 1-2 days after being laid.
  • Transfer the clutch: Gently remove the clutch and place it in a separate container with a damp paper towel lining the bottom. Avoid direct contact with water.
  • Maintain humidity: Use additional damp paper towels on top to create a humid environment, which is crucial for development.
  • Monitor and hatch: Place the container in a warm location and keep it lightly damp. Hatching typically occurs within 2-4 weeks. Once baby snails emerge, you can release them into the main tank or another designated tank.

How To Tell If Mystery Snail Eggs Are Dead?

How do you know if mystery snail eggs are dead? First, gently pick up the eggs and examine them to determine if the mystery snail eggs are dead. Fresh, viable mystery snail eggs will appear round, smooth, and translucent. If the eggs are discolored, distorted, or have a white, fuzzy appearance, they are likely dead.

Another way to test the eggs’ viability is to shake them gently. If the eggs emit a sloshing sound or feel hollow, they are probably dead. Additionally, if the eggs are kept in suboptimal conditions, such as low humidity or extreme temperatures, they are more likely to die.

It’s essential to regularly check the eggs and remove any dead ones to prevent them from contaminating the healthy ones. If uncertainty remains, it’s best to consult with an experienced aquarist or marine biologist for further guidance. 

How do you dispose of a mystery snail egg clutch?

If you have discovered a mystery snail egg clutch in your aquarium and do not want to keep the snail population growing, there are a few ways to dispose of the eggs.

The most humane method is to freeze the entire clutch in a sealed plastic bag for at least 24 hours, which will effectively kill the developing embryos.

Once frozen, the clutch can be discarded in the trash. Alternatively, you can carefully scrape the clutch off of the surface it is attached to and dispose of it in the trash. It is important not to dispose of the eggs in any body of water, as they can hatch and potentially become invasive.

Whichever method you choose, properly clean the area where the clutch was found to prevent any remaining eggs from hatching. This will help to control the snail population in your aquarium and avoid any potential issues with invasive species. 

Can mystery snails lay eggs underwater?

No, mystery snails only lay eggs above water! This protects them from hungry fish and keeps them moist for hatching. Look for a gelatinous clutch near the waterline.

Will Mystery Snail Eggs Hatch If They Fall In The Water?

Nope! Submerged Mystery Snail eggs are doomed. They need air to develop and drown underwater. Keep the clutch moist above the waterline for happy hatchlings!

Do golden mystery snails die after laying eggs?

No, Egg-laying is typical for mystery snails and doesn’t harm them. They can live for years after having many clutches. Enjoy watching new snail life emerge!

How Fast Do Baby Mystery Snails Grow?

Tiny hatchlings to adults in just 2-3 months! With proper care, young snails can double in size every 2-3 weeks. Watch them zoom in!

Why Do Mystery Snails Lay Eggs Out of the Water?

Mystery snails lay eggs out of the water to protect them from potential predators and ensure the survival of their offspring. The eggs need a moist environment to hatch successfully.

Do Mystery Snail Eggs Need To Be In Water?

Not exactly! They need moisture, but submerging them in water drowns them. Keep the clutch damp above the waterline for healthy hatchlings!

What do I do with unwanted mystery snail eggs?

Dispose of unwanted mystery snail eggs by freezing them for 24 hours, then place them in the trash to prevent them from hatching.

Does water affect snail eggs?

Yes, but it depends! Most snail eggs need moisture but drown underwater. Keep them damp above the waterline for happy hatchlings!

Is water good for snail eggs?

Tricky! Water benefits snail eggs by keeping them moist, but submerging them is fatal. They need air, so keep them damp above the waterline for healthy hatchlings!

How to hatch mystery snail eggs in an incubator?

Craft a moist haven! Place eggs on a damp paper towel in a container. Seal with holes and float in the tank. Watch tiny snails emerge in 2-4 weeks!

However, you can increase the hatching rate by using an incubator.

To increase the hatching rate, transfer unwanted mystery snail eggs to an incubator with proper conditions, such as temperature and humidity, for optimal development.

What to do if a mystery snail egg clutch fell in water?

If a mystery snail’s egg clutch falls into the water, carefully remove it and place it back into the aquarium or a separate container with suitable conditions for hatching.

What do infertile snail eggs look like?

Infertile mystery snail eggs lack the telltale dark spots of developing embryos. They’ll be clearer, opaque, or white, while fertile ones show a slight yellow or pink tint. Watch for lumpy shapes in infertile eggs and observe for changes – fertile ones develop!


In conclusion, apple snail eggs may fall into the water for various reasons. The most common cause is that the snails may lay their eggs above the waterline, and due to multiple factors such as vibrations, movement, or temperature changes, the eggs may detach and fall into the water. Another possibility is that the snails may intentionally deposit their eggs in the water, requiring a humid and moist environment for the eggs to hatch successfully. Factors such as predation, competition, or disturbances in the environment may also cause the snail eggs to fall into the water.

Mystery snail owners must provide their snails with a suitable climate for egg-laying, including a calm and stable water surface, adequate calcium levels for egg formation, and protection from potential disturbances. By understanding why mystery snail eggs fell in water tank, individuals can better care for their snails and ensure their successful hatching and development.

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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