So for about two weeks or so, I've seen a growing number of little critters starting to populate the glass of my tank. One is a pretty good amount of these little white starfish with a shorter leg on one side. The others are like a hard snail but about the size of a pea and shaped like an oval.
They never end up in the sump, but seem to come out during the late evening and stick around until about 9am the next day. Don't seem to be bothering anything, so figured I'd ask. Are these something I should be concerned about, or should I let them go? Seem to help keep the glass clean, but if they are a nuisance then I want to get them out now before its too late. If they are a problem, is there anything--fish, crab, etc that will eat them? Or, am I looking at a chemical solution if they are in fact bad?
They never end up in the sump, but seem to come out during the late evening and stick around until about 9am the next day. Don't seem to be bothering anything, so figured I'd ask. Are these something I should be concerned about, or should I let them go? Seem to help keep the glass clean, but if they are a nuisance then I want to get them out now before its too late. If they are a problem, is there anything--fish, crab, etc that will eat them? Or, am I looking at a chemical solution if they are in fact bad?