i found a few ameba looking things crawling on my tank this morning. after turning the lights on they disappeared within a few mins. What are they? I cant attach pic.. file is to big. It looks like an ameba that we learned about in biology.. if anyone can help me, i can gladly mail it to you.
IMO, all flat worms have the potential to be detrimental, simply from unchecked multiplication. They will eventually chocke the animals you want to keep.