I found your site yesterday and just wanted to introduce myself. I have had aquariums in the past. Most recently, had a Jack Dempsey who recently died after many years. My wife decided she didn't want another cichlid like that as she got too attached and was very upset when he passed. So, going back to the community tank. I have never done a 55 gallon community before and am looking forward to it. In the past, have had mainly 20 gallon, although growing up, my family had a 40 gallon hexagon tank. I have never actually done a tank "right" though, other than keeping the Jack by himself, so looking to gain that knowlede here. I never really looked into it before and would just get one of the "Fish of the Month" at my LFS and throw them in the tank, not really looking much at compatibility/scholling/etc...so I have probably been mean to many fish in my lifetime, but looking to change that this time. I have been browsing through a lot of past discussions and have some ideas too, looking forward to getting to know some people here.