Review on Universal Lid Clips for Rimless Aquariums - Rimless Aquarium Lid Clips/Fish Tank Glass Cover Clip Support Holder/Fish Tank Brackets Clip Hanger (6mm) by Lisa Campbell

After going through several other options, I regret not selecting it first. I could probably use 5mm clamps but they work great for my Lifegard Crystal Elevated 5 gallon to hold the custom screen cover. I found these to be the only lid supports that are flat enough for the lid to clear the rear filter baffle. The quality is comparable to the clips I had from Fluval and Lifegard.