So I just set up a ten gallon tank (biggest I've ever done for a beta thanks to the tips from you guys) and I've got this male marbled pastel double tail. His name is Mangetsu and he's been attacking the sides of the tank for six hours now. I'm wondering when he will stop and if I should be worried. This is the first time I've ever had a beta do this. Also I'm new guys so thanks. I'll post pics of him and the tank when I figure out how. So any one who can tell me how it's done from my Androids gallery will have my thanks.