I put 1/2 of a hikari algae wafer RIGHT in front of my snail and he grabs onto it and munches it up. that way the others don't get it and spread it everywhere to get the tank messy. he also helps my corycats clean up watever food is missed from all the fish and I also am going to start supplementing his diet with snail jello with calcium in it for his shell health. (it helps when you have a ton of extra calcium from having reptiles ;) ).
1 Doberman Mix: Emmy, 2 DSH Cats: Rowan & Jacob, 1 Bearded Dragon: Rainier (aka Mista Lizad Man), 1 Eastern Box Turtle: Greta, Two 5g tanks: Alchemy (Halfmoon) and Custard (Yellow VT)