I am in the early stages of putting together my 175G Bowfront Reef tank.
I will have a 33G sump inside my wooden stand and I am wondering if the bare plywood on the inside of the stand will experience rot or mold.
I am thinking about sealing the inside of the stand but I can't decide between a water-based Varathane or a Marine Varnish or a wood/deck sealant like Thompson's Water Seal.
Any thoughts or insights?
Tips or warnings?