NOT SUPERGLUE. I seriously hate superglue. This is kind of a rant as i know there are some alternatives, but why do people recommend this garbage??? It does NOT work to attach frags and has only been a source of frustration since i started reefing. Could be today could be next week could be in a year, but the littlest bump on any frag from anything whether it be fish, crab or me causes the superglue to unattach the frag from the rock work. Then i get to spend hours dusting sand off of frags and trying to get them back into proper position. If i notice in time that is... (rip stunner chalice).