I ordered some bottles of copepods/amphipods from ebay last week and I've noticed some pretty nice sized creatures (1/8"-1/4") swimming around my tank and sump. They look like a very thin, flat pill bug or rollie pollie and they swim upside down. Any idea what they are? They look too big for my fish to eat, so should I just let them be?
Here's the best pic I could get.
http://i264.photobucket.com/albums/i...quarium160.jpg