[tang daddy]

for the guys who said that little fish will fit through eggcrate that is correct!! however if you want to prevent gobies,pipefish and all other small dummies do the following....

Home depot sells gutter guard basically plastic mesh, 1st cut 2 pieces of gutter guard a little larger than the piece of eggcrate, 2nd lay 1 piece of gutter guard down on the eggcrate, 3rd lay the other piece of GG over the 1st piece of GG only this time staggering it so that the hole is so small that only a small piece of mysis can fit through. Hold all 3 pieces together with black zap straps and voila you got the alcatraz of overflows.