Had to get to the end of the thread before someone finally stated the obvious: if you chooose to use a bare bottom glass then it should be painted a dark and natural color black is fine. You can buy a spray paint that sprays a mix of natural colors so that the effect can be like that of granite or marble. This a really good way to go for BB tanks.
I would even suggest a compromise. Spray the spatter piant on the outside face of the bottom pane and also include a sprinkling if fine natural colored sand that matches the paint closely. Many fish seem to like even a small amount of sand to search for food. I doesn't have to be very much at all. It will not make any difference whatsoever as far as effective filtering is concerned.
I would even suggest a compromise. Spray the spatter piant on the outside face of the bottom pane and also include a sprinkling if fine natural colored sand that matches the paint closely. Many fish seem to like even a small amount of sand to search for food. I doesn't have to be very much at all. It will not make any difference whatsoever as far as effective filtering is concerned.
