Why does BRS recommend this?
The extra thick gel super glue is a great value and is one of the easiest glues to work with. Employees at BRS choose to use the 20-gram tube for its ease of use and the ability to get every last drop out of the tube. The extra thick gel super glue is slightly thicker than traditional thick super glues.
BRS Extra Thick Gel Super Glue is 100% reef safe and perfect for attaching corals to frag mounts or aquascaping with rocks and other materials. Extra thick gel super glues are chosen because they hold their shape and stay put better than regular superglues, which allows them to work well for attaching frags underwater or for holding larger frags like acropora branches better, and it fills gaps where runnier glues would just puddle on the surface. Thinner glues can work well for flat surface to surface bonds such as zoanthid mats, but thick gel superglue has a little more versatility as well as a longer cure time.