So I now have one fish hovering in the corner w/ a clamped dorsal fin. The guppy is oblivious as always, and the molly even charged a ghost shrimp I just got. Is she just asserting her rights as tank queen? And the clamped dorsal fin can be a sign of just stress, right? Not just disease? (PLEASE don't make me go thru ich treatment again!!!) Would I be doing the stressed fish a favor if I take it back to the lfs, or will things settle down in the tiny tank? I did just do a water change and added new plants to replace the free plant I killed. Of course I kill the free plant...! BTW, I got a snail (a ramshorn, I guess, but the lfs just had them labeled as "assorted snails") and that thing is HUGE! It's bigger than the molly! And more fascinating than I would have thought.