i think the nanny state has gone far enough, people should be free to buy what they wish. the main problem with this, as in all things, is who decides what is too small for a certain fish. ive been rudely told on other forums that a 90 gallon isnt big enough for bala sharks/ angels or whatever, with the end remark usually something like' in the wild these fish have x amount of territory to themselves'. the truth is even the most massive home tanks are never going to mimic nature properly. isnt it funny how the minimum size for a certain fish always seems to be the very size of the know it alls tank.