I'm on at least my 3rd tube of epoxy and about 6 small tubes of superglue gel and I dont even have alot of corals. I use dollar store superglue gel to glue corals on plugs/rocks/shells outside the tank and aquarium systems holdfast epoxy to mount plugs are larger corals in the tank. I tried D&D and while it looks a little better dry but turns unto mud and clouds the whole tank which holdfast does not do.