You are right about the O2. I normally use surface agitation to get there. So I point my flow upward.
Keep us updated on the fish. If it gets worse then I do suggest a medication.
Keep us updated on the fish. If it gets worse then I do suggest a medication.

/www.youtube.com/watch?v=AT8xvE1Ixq4
as he didn't strike me as the best one I've seen when I got him at the pet store but he is growing on me. It's the personality that matters. With the lights off his colour turns into green green irridescent and if it wasn't for his dorsal fin, he would be gorgeous looking. He probably was very good looking before someone managed to nearly tear the life out of him.