i have a 125 thats im puttin my 3inch gt into but want to know what else would work well with him. the tank is 72x18x23
other choices for dithers could be giant danios or a medium to large rainbow species. I really want to eventually get a school of millenium rainbows to keep with some of my larger cichlids. I'd go with a green terror, jack dempsey and a carpintis and then a big school of dithers.