If you have a fish that’s constantly traveling into the overflow box and sump, eventually the trip will spell disaster. The fish may be fine most of the time, but eventually, it will get sucked into a return pump or stuck under a piece of equipment. To prevent these adventures, various types of mesh can be used to block openings of the overflow boxes, preventing small fish from escaping. That said, the mesh will also trap some detritus and may need to be cleaned from time to time to prevent drainage issues.
Tip of the Day – 1/13/20130