I would LOVE to have gertrudes or furcatas in it. Unfortunately they are not that common to come by here. Also, ever had "one of those fishes" that jsut never worked out for you? Ya, that's me and Furcatas. I took several stabs at them (no, not literally lol) a couple years ago and although the dwarf rainbows flourished, I could never seem to keep furcatas swimming for more than a few weeks and I'm concerned about keeping a fish here that I need to be constantly worrying about.