Also I should mention, a few days ago when we were changing his water, he accidentally got a little bruised on his side and lost a few scales. That was about five days ago. But now the bruise is almost gone and his scales are growing back almost completely.
His fins look like they got torn on something. But what? Could it be on the stems of the silk plants? They're kind of bunched together. Could he have tried to swim through them and got all torn up?
I'm going to let him sleep tonight and see if he's better in the morning.