I bought two Otos two days ago and one of them is very hyper- he doesn't seem to be able to sit still for very long. He was active at the store, so I'm not sure if this is just part of his natural personality or if there's something bothering him. His tail is ragged, but I haven't been able to get a good look at it, so I'm not sure what to do about it. So far, I'm just trying to leave the tank alone so they can adjust to my water conditions.
I know you're supposed to keep Otos in groups, but there were only two in the store. Right now they're both in a large Kritter Keeper quarantine tank filled with some Java Moss, river rocks, heater, airline (no airstone), and a plastic container covered with greenspot algae. There are also 9 Ghost Shrimp in the tank. So far, all the food (algae wafers) I've given them has gone uneaten and they've been avoiding the plastic container with the algae on it.
Is it normal for some Otos to be this restless? And is there anything I can do to encourage them to eat or treat the ragged tail (without knowing what's wrong with it)?