I just bought the aqueon betta bow 2.5 for my two bettas (the minibow with the divider...and for those who will say anything about the size, 1.25g heated is better than 1g not heated, which is what they were each in before) and put my two guys in it tonight. The divider is pretty easy to see through, so I added a piece of black plastic canvas to make it a bit more difficult for them to see each other. The only problem I have right now is that you have to have the water above the output of the filter, but I'm worried that one of them might try to jump the divider.
I've lowered the water level as much as I can without going below the filter output. Right now the water level is almost an inch below the top edge of the divider.
I know a lot of people have this tank (the minibow), and I was wondering if it's okay to have the water below the filter output, or will that damage the filter?