I have a 60 litre tank with 4 Breeding cory and a pair of breeding albino bristlenose. The tank has 2 filters running on it. everything is perfect but the snails, i think they're pond snails but not sure. They are the most mesy things ever they have more waste then all my fishes and i have to regulary clean the tank. Every morning when i feed the fish and in the afternoon i take of all the snails i can see off the glass and chuck them into unused tank that is filled up with water and these days you cant see water but only snail even after chucking it away once 3 weeks ago, but know its enough i totally want to get rid of them without ripping apart the tank, what should i do?