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The problem with acrylic sheets in a glass aquarium is a raised baffle falling. The silicone caulk itself has plenty of support to hold a baffle in place horizontally. We used to get around the vertical support by cutting two small 1" squares and silicone caulking them underneath the raised baffles right up against the glass. This way the baffles weren't held in place solely with caulk and actually rested on the 1" squares.No concerns about the baffle failing? I have one of those sump kits with the plastic baffles. It's difficult to get plastic to stick to glass (as opposed to glass baffles against a glass tank), the only reason I'm not concerned about my baffles failing is because there's a generally equal amount of water on both sides so the net pressure on each baffle is minimal.
(If I ever build another sump, it'll be with glass baffles.
I hadn't thought of that, but it makes sense. This is the baffle kit I have, which incidentally, has that feature built in. You can see the end panel (that creates the return chamber) is propped up, so it can't slide down.The problem with acrylic sheets in a glass aquarium is a raised baffle falling. The silicone caulk itself has plenty of support to hold a baffle in place horizontally. We used to get around the vertical support by cutting two small 1" squares and silicone caulking them underneath the raised baffles right up against the glass. This way the baffles weren't held in place solely with caulk and actually rested on the 1" squares.
I use this and love it.. somehow it holds like 15+ gallons of ato water.. unsure the size I have but you get the idea! .. Gamma2 Vittles Vault Airtight Pet Food Storage Container