You should see most reputable breeders breeding tanks. With discus they do fine in small tanks, as they can't burn nearly as many calories when they freak out. If he is keeping his water changes up, then his fish are healthy. Based on the shape of the discus, he is doing everything right. This system is probably growing better looking, healthier discus than most people that keep discus in a 1 per 10 gallon setting. The key is keeping water parameters in check, and feeding with high quality food.knobhill;1830975;1830975 said:Anyone else think it is cruel to put 15 adult discus in a 40g tank? I tried to buy the fish only but he wouldn't sell them separate from the system.
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