I just got biocube 14. Have had my bigger tank for about 2 years now. Looking to add a few baby snowflakes and a goby/shrimp pair. I was looking at the tank and im worried about the top overflow or whatever you call it where water moves from the display to the back, and the slits down lower that serve the same purpose. The slits are about 1/4" wide on both of them and I am worried that my small fish/shrimp my find their way back there and get caught and killed. Does anyone have any suggestions on how to cover this and make it safer for my livestock?