D-D AquaScape Putty
When it comes to securing corals in our tanks, we need to use putty when super glue gel won't suffice. The 2-part epoxy putty offered by D-D The Aquarium Solution is the brand I recommend most. It is reef-safe, comes in a coralline-pink color, and lasts a long time. I often refer to it as "Deltec putty" - I sell it here: https://melevsreef.com/reefshop/dry-goods/d-d-aquascape-putty