Who Gives A Fish Forums

Good call, raid. Also, add a second sponge filter for extra bio filtration. It'll help with the smaller tank. Keep an eye on ammonia, especially if you're feeding more. Discus are sensitive to spikes.

Yeah, raid, bump it to 85°F. Small tanks heat up fast, so watch for swings. I keep my 50 gallon at 84°F with a backup heater. Discus are picky about consistency. Also, try feeding more, like twice a day with variety. They'll grow better.