Hello, I'm fighting a nasty outbreak of Aptasia (multiplying at an insane level) and the three attempts to add predators (Berghia twice, peppermint shrimp once) have all failed due to them going through the slots in the overflow and down into the reef mat only to die. I'm going to order more peppermint shrimp and found 1/8" plastic mesh at BRS that I think will do the trick of keeping the shrimp from going through. I'm just not sure how to "fasten " the mesh? I have Red Sea tank and the overflow almost goes across the whole back. I want to be able to clean it regularly so it has to be able to go on and off pretty easily too. Any advice is appreciated. Thanks.