I like this game. Very cute and had a lot of potential. I haven't beaten the game yet but from what I have played the tank system is a little annoying. In your first room of your shop you get four fish tanks. 2 large ones that hold 4 small fish and 2 large fish and 2 small tanks that hold 3 small fish and one medium fish. So that totals about 20 fish. But there are more than 20 types of fish. You eventually are forced to either hoard new fish or sell them and I really don't like that.