So I finally got a 125. I went with it instead of the 120 so the dimensions are 72x18x21. I was planning on 2 red serums a blue acra an oscar and 4 clown loaches (I know several think it needs to be a minimum of 6 so maybe no loaches...) and maybe some other cichlids. well, anyways when I went to purchase the tank I saw two fish which I was considering but had never seen adults in person. I loved the jack Dempsy and the green terror. I know both can be quite aggressive but I was wondering if different combos I could do with these fish. maybe with some convects idk. I just really want an oscar at least 1 red serum (maybe not if I get the jack and terror). I have several tanks but the first is over 60 gallons very happy with it and will be running an fx6. Glad it's so big haha.