What eats pest snails in aquarium?

Pest snails are actually in high demand if you own a snail-eating fish because they provide a lot of essential nutrients and enrichment for the animal to display its natural hunting behavior. Almost all freshwater pufferfish – from the tiny pea puffer to the massive Mbu puffer – love to eat snails, and the crunchiness of the snail shells can help grind down puffer teeth and prevent them from getting too long. Many loaches – such as clown, zebra, yoyo, and dwarf chain loaches – can use their pointy snouts to poke into snail shells and slurp out the insides. Certain larger cichlids like oscars also enjoy a good meal of mollusks, so don’t forget to save some for them. Finally, some aquarists employ the services of the assassin snail – a 1-inch (2.5 cm), carnivorous snail that specifically targets other snails as its primary diet.

For more information, read our full article on how to get rid of aquarium pest snails.