Originally Posted by
brewmaster15
I was afraid of this. This is why its important we have pictures.Theres no easy way to say this but all your discus are sick with one being ok but stunted. The culprit is possibly parasites but most likely just being in the wrong environment and not getting optimal care. Young discus are easily stunted and in your planted tank and the fish species you have coupled with your food and water change schedule it was not the right way to keep them. My goal in the disease forum is to help members with their fish problems but sometimes its just not possible. Your fish as they are now probably will waste away and die. Even if you changed everything to make it a focus on Discus they are too far gone to turn around except maybe one.
My advice, as much as I hate to give it here is to cull the group and start overafter reading up on our beginners board. Theres an excellent guide there too by discuspaul thats a good read and a video link.
Im sorry to have to tell you this but it would be best to euthanize these and if Discus are of interest do it in a fashion more specific for discus. At the least cull them all but the one.
al