I just discovered some distrurbingly large white ball corallimorphs in my 12g, large enough that I don't want them in with my royal gramma (same tank) and can't really re-home them in my other tanks safely. I need to exacto them off the rock and take a couple to the LFS since they're interested in some, but the corllis need to be stuck to something. Unfortunately I'm turning up short for rubble bits to attach them to - all my rubble bits have other stuff I don't want to get rid of. I have some marine epoxy putty...it that alright as a substitute to make a little disk for attaching? I thought I saw a post here once before about that but I can't seem to find it now.