Hello all, i have two Silver Dats (approx 6 - 7" each) and three Poly. endi.s (6 - 13"). These fish are all in a 120 gallon (60 x 18) and the tank looks very very empty and boring. Can you please give me some ideas for tank mates. They dont have to be odd ball, they can be cichlids etc etc, anything really. Thanks in advance.