Blackberry - I just set up a divided 10 gallon tank for 2 male bettas over the weekend. They were both flaring through the commercial divider so I went to Jo Anne's and and bought green plastic carding fabric for doing counted cross stitch and propped it up on the carding side with suction cups. The carding fabric cost 95 cents. Then they could only see each other if they pressed their little noses to the divider, which they did but less often. I was worried about the double tail half moon stessing out his fins, so I bought filter floss and stuffed it between the two layers. Now they really cannot see each other, and I put a little box filter on each side for circulation.
Last edited by russalka; 03-23-2011 at 08:15 PM.