So I have an old baby biorb in my basement back at home that I want to bring back to college with me. It used to house some guppies and mollies. Does anyone have their betta in a biorb? My only concern is because of the shape that it wouldn't provide a lot of surface area of the water, but it has a bubbling tube filter in the center. I always liked the look of it and I hate letting a nice tank just sit and not be used!