Crystal Clear Aquatics AAD00321 Aquaculture Reef Glue Gel Tube, 20-Gram Advanced aquaculture reef glue gel is designed for soft coral and stony coral fragging Press to mounting fixture and hold until glue begins to cure For best results apply a small amount of reef glue gel to coral frag, only enough to cover exposed skeleton, avoid covering live coral tissue Can be applied under water Comes with 20-gram tube