My father keep Discus for 20 years in Milwaukee (80's and 90's) while I was a kid. I'm new to the hobby but not the fish, and I must say I've watched years worth of water changes first hand, but as most children do I paid no attention. I've only a few things to offer here, one, I've read Simplydiscus for about a year and a half, and besides discipline I've learned most about keeping discus from this site. Two I bought from Hans. Three, I've killed 5 of 14 fish and two are stunted and one is peppered. So with that said, here's a video of where I'm at today. I think I'll start threads of these grow outs from old photos. They are young, and not breeding.
http://youtu.be/yulnNHruObk