Snails are good for shrimp tanks. Their waste helps keep the cycle going since shrimp have such low bioloads and shrimp can feed on the slime they sometimes leave behind. I have 3 in my 20 gallon shrimp tank.
On many occasions, I've saw my shrimp break down the snails poop even more.
that's good to know! once I finally have a chance ot make a shrimp tank I'll definitely stock some of the wonderful "water dog" mysteries in there
My cherry shrimp do this too! I figure they’re cleaning their shells or just avoiding being run over (my magentas are VERY active!).