What To Feed Lake Snails In An Aquarium. So aquarium salt is not going to help you get rid of your snails. Put a piece of cucumber, cabbage, lettuce or a ripe banana skin into your aquarium and leave it in there until morning.

Although snails can feed on leftover fish food and algae, it is essential to know that if they clean all this up and there is nothing for them to eat, it is advisable to add a couple of bottom feeder tablets for them to munch. Advantages of snails in the aquarium. Vegetation is a favorite of wild freshwater snails.