Who Gives A Fish Forums

I've found that feeding my discus in smaller amounts multiple times a day helps reduce aggression. Tank is 60 gallons, 5 discus, no other fish. I use a sponge filter and keep the temp at 84F. Water changes every 5 days.

Airstones help a lot with gas exchange. If you don't have one, grab a cheap one and see if it makes a difference. Also, how's your surface agitation? Low oxygen can make things smell worse.