oh god, I dont wanna risk it thanks thoMy experience in a standard 120g, was that my powder blue, yellow, and hippo, which eventually killed off yellow and powder, due to stress. The hippo was relocated to a standard 180g, which the owner had to pass on, due to needing more swimming space. No bashing, just reality. I currently have a 36"x24"x24 and won't even consider A tang, FWIW.
Cheers