Scottkelly911
New member
Ok, I finally remembered the name of the stuff that I'm looking for to use on my egg crate backwall for my Nano 12dx, Ray Crete. Has anyone used it and which one is reef safe? I have a friend who told me a long time ago about using Ray Crete to bond rocks together or even to make your own rock out of this stuff. But when I went to Home Depot, there were several different ones and I don't want to get one that's not going to be reef safe, so which do I use? Any help would be appreciated.