You can get some stainless steel mesh and bend it into a u shape and put over the overflow box. There is different sizes available so you will just pick the size the works.
All matter is merely energy condensed to a slow vibration, we are all one consciousness experimenting itself subjectively, there is no such thing as death life is only a dream which is an imagination of ourselves. Bill Hicks
ua hua's 90 gal. high tech
ua hua's 5,000 gal. water garden