I have a beta fish tank and today I got two snails to keep my little dude company. After I cleaned out his tank and put fresh water in, I placed the snails in and shortly after, put the beta in. I was keeping a close eye on the tank, to monitor, make sure everything is ok, and I noticed a teeny tiny little shrimp scuttering along the bottom of the tank, in and out of the rocks. I can only assume that it got in there when I put the snails in, my questions are; should there be any cause for concern? Do my snails have parasites? Should I return them? Will my fish be effected?