Have you noticed that small snails have appeared in your aquarium? At first, they may seem harmless, even cute, but their population can explode in the blink of an eye. Suddenly, they are everywhere: on the glass, plants, decorations.
Such an invasion can cause a lot of trouble. Snails actively eat tender plants and leave behind a lot of waste, which disrupts the balance in the aquarium. The good news is that this is a common problem and can be successfully dealt with.
Don't panic and immediately resort to chemicals. There are many proven and safe ways to regain control of the situation. From simple manual methods to attracting natural helpers, we will discuss the most effective steps to help you get rid of snails and keep their numbers at an acceptable level.
Pros and cons of having snails in an aquarium
When an aquarist does not buy snails on purpose, the question arises: where did these uninvited guests come from? Usually, freshwater mollusks appear in the tank after the purchase of aquatic plants or decorative items. For example, snail eggs attach themselves to leaves.
When the number of shelled guests is within normal limits, there is no harm to the other inhabitants of the aquarium. Moreover, snails are beneficial as they eat food particles and dead algae, thereby cleaning the tank. However, under favorable conditions, snails in the aquarium begin to reproduce intensively, and you have to think about how to destroy the excess individuals.
There are mollusks that reproduce slowly. These include, for example, ampullaria, which are undemanding and do a good job of cleaning. Their numbers never exceed the norm.
Another thing is physa and catfish. They reproduce rapidly, and in a short time, small snails cover the bottom and walls of the tank, tightly settling on the leaves of plants. The aquarium looks unattractive. But worse, the reproducing mollusks begin to run out of food, so they start to eat the vegetation.
Many aquarists worry about whether snails carry diseases. Freshwater mollusks that have infested an aquarium can indeed infect fish with parasites or infectious diseases, but this is rare. Much more often, pets become infected from poor-quality food or from new inhabitants that have been added without quarantine.
Snails in an aquarium can multiply quickly and become a real problem, especially if there are too many of them. The best way to get rid of them is to understand why they appeared: most often it is due to excess food, a dirty bottom, or plants with eggs. Start by reducing the amount of food you give your fish, thoroughly washing new soil, and inspecting plants before planting. Regular water changes and cleaning the bottom also help. If there are already a lot of snails, you can use a mechanical method—collect them by hand or set a trap made of a piece of vegetable overnight. Some fish, such as gouramis or pecilias, also readily eat them. The main thing is not to panic and to act gradually, without chemicals, so as not to harm the inhabitants of the aquarium.
Mechanical method of destruction
Getting rid of unwanted inhabitants mechanically is problematic and will take a lot of time and effort. The first thing to do in this case is to remove all large individuals that you can spot. Small snails should simply be crushed against glass and driftwood, and the fish will then eat the remains. The method is complicated, not 100% effective, requires periodic repetition, but allows you to keep the mollusk population within normal limits.
Traps
You can buy traps of any design at any pet store. A snail trap works like this: the animal crawls inside, attracted by the bait, but cannot get out. The advantage of this method is:
- Simple design;
- Effectiveness of use;
- Low cost;
- Harmless to fish.
You can make the trap yourself. To do this, use a deep saucer or other container with high, smooth walls from which the snails cannot escape. Place a treat inside: pieces of cabbage, cucumber, carrot, or zucchini. Discard any mollusks that fall into the trap. This method is also not 100% effective, but it allows you to normalize the population if there are a lot of snails.
Chemical method
The most effective way to get rid of snails in an aquarium is to use chemical preparations. Chemicals are 100% effective, but there are some nuances to consider.
Almost every chemical remedy for snails in aquariums is based on copper, which is toxic to all invertebrates. The effect on vertebrates is much less toxic, but it is still better to remove not only shrimp and crustaceans, but also fish from the aquarium before treatment.
If for some reason it is not possible to purchase a store-bought snail remedy, you can make the chemical yourself: 0.3 g of copper sulfate per 10 liters of aquarium water. After adding the preparation, turn on the aeration system and remove the dead mollusks after 2-4 hours. Then carry out a complete water change.
Plants should not be removed before chemical treatment, as snail eggs may be attached to the leaves. However, it should be understood that some types of aquarium vegetation will die due to their sensitivity to copper.
The chemical method of removing snails from the aquarium is dangerous and requires caution, so it is used in advanced cases when other methods of removing uninvited inhabitants are ineffective.
Use of electricity
There is a good way to deal with snails in an aquarium if the situation is serious. Remove the fish and other beneficial inhabitants, leaving the plants, mollusks, and water in the tank. Immerse two multi-core copper wires into the tank and connect them to a 9-volt battery. Treat with electricity for 4-5 minutes. After the pests are killed, clean the soil with a siphon to remove the dead bodies.
After 2-3 days, it is advisable to repeat the siphoning process, as it is not always possible to remove all the carcasses the first time around, and they begin to decompose, releasing nitrates.
Predatory mollusks
Many aquarists believe that the safest and most effective way to get rid of snails in an aquarium is to introduce predatory mollusks. Pet stores sell predatory Helena snails, which eat other types of snails. Helena snails are inexpensive, reproduce slowly because they are dioecious, are easy to care for, and look attractive, decorating the aquarium.
This carnivorous snail inserts its proboscis into the body of its prey, sucks out the insides, and leaves only the shell. After the disappearance of their main food source, helenas switch to a diet typical of other aquarium mollusks.
Predatory fish
If small snails appear in the aquarium, a good way to get rid of them is to buy predatory fish. The main thing is to keep the predators half-starved so that they pay attention to potential prey.
Which aquarium fish eat snails:
- Tetradon is the best option, but this fish is quite aggressive and is not suitable for a multi-species aquarium.
- Macropods;
- Gouramis
- Macracantha;
- Catfish.
To help fish find prey, you should turn over driftwood and other decorations, as snail eggs are usually hidden under them.
As you can see, it is quite possible to deal with an invasion of snails in an aquarium. The main thing is to understand the reason for their rapid reproduction, which is almost always an excess of food and organic waste.
Start simple: tidy up the aquarium, reduce feeding, and try hand feeding or bait. Often, this is enough. If the problem is serious, cleaner fish or special products from a pet store can help, but use them with care.
Remember that a few snails in an aquarium are actually a good thing; they are part of a healthy ecosystem. Our goal is not to destroy them completely, but simply to bring their numbers back under control. Take gradual action, and your underwater world will return to balance.
