Planted Tank Enthusiast
Join Date: May 2019
Location: Palm Springs, CA
A snail outbreak is like algae--a rite of passage for most new tanks. I wouldn't worry too much about it--as others have said once their food source (excess fish food, algae, dead plants) is limited, their numbers will be too. Lots of loaches and some other fish will eat them. Saw a post recently where someone's corydoras had learned to tagteam on snails & eat them. I had a huge explosion when I was cycling through several algae outbreaks after starting my tank. A couple of pea puffers eliminated them--except the MTS which quickly learned to stay buried in the substrate and only come out at night. Once the pea puffers were banished for fin nipping, the MTS started reappearing during the day. Can snails be smart?
An assassin snail or two will help keep their numbers down. And they're pretty with brown & yellow striped shells. Or there are lots of attractive species you can get to outcompete the ones you don't want. Some like nerites can't reproduce in the aquarium, so overpopulating won't be a problem. They do serve a valuable purpose in keeping down algae, eating leftover food, and aerating the substrate. If they really bother you, you can trap them with pieces of zucchini or something and keep removing them. But I wouldn't bother--just like with algae their numbers will normalize & reach a balance.