I'd like to make a 3D background for a 125g. I'm thinking to go the egg crate, pond foam, and crushed coral/sand route with pieces of rock. I've read about using a two-part resin over everything -- does this need cure time like cement? Or will it be safe for use as soon as it dries?
Could I use pond foam with sand pressed into it without a resin covering? I have some two-part on hand, but not sure if it is enough for a large-fish surface area (and it is rather expensive).
Could I use pond foam with sand pressed into it without a resin covering? I have some two-part on hand, but not sure if it is enough for a large-fish surface area (and it is rather expensive).