Review on Aliyaduo 8 Pack Fish Tank Divider Set - Snap-Together & Easy-Cut Plastic Aquarium Separator Panels - Grid Isolation Board, Egg Crate Fish Tank Bottom Tray by Veronica Navarro

I was trying to use this in a way that aggressive male platys wouldn't bother others and get stuck in the cell. The holes are too big to be used for this purpose. Seems to work well on larger fish. Please note that it comes without suction cups and some parts do not match with other parts, you need to mix and match the right ones. Was able to reduce it to 20 gallons. the size of the tank and put it in place with the suction cups we had from another product and it seemed pretty solid.