Frag adhesives...

So im curious as to what specific kind of super glue is reef safe to adhere frags to rocks. I have a few frags on a rack that im wanting to get placed permanently in my rocks. Im looking for something that will work underwater. I was told that krazy glue gel or another similar product would work as long as it had cyanoacrylic (sp?) as the main adhesive chemical ingredient. I know i can get some from a fish store but i will not be near one for several weeks now so i was curious what my other options would be as far as what wal mart or a hardware store might sell.

 

Thanks to everyone for their opinions on what they use. I decided to go with Loctite brnd water resistant super glue gel with cyanoacrylate in it. Its what wal mart in my home town sold. I used everyones responses as a deciding factor in my purchase. I do want to clarify though before i use it...super glue gel with cyanoacrylate is safe to use directly inside and submerged in the water of the aquarium with no ill effects to livestock? When im near a fish store again i will try to remember to purchase a reef marketed brand of adhesive...was just in a pinch this time as i was tired of my glue jawed trigger bumping the frags on my rack and knocking them off into the substrate.

 

I saw the jb weld water weld at wal mart also...no offense though but the original jb weld has a distinct odor to it that makes me think that fish and corals may react negatively to it. I do appreciate your response though...i will say jb weld is amazing stuff...and if more people can confirm it can be used in a reef tank then that will be my adhesive of choice due to the original blends strength.