Tunze Coral Gum Instant

Coral Gum instant is a two-component coral adhesive for safe cementing of coral fragments to substrate rocks. No deleterious matter or adhesive residue is introduced into the aquarium water; it is unbreakable, yet remains flexible and withstands high loads.
Can be used in fresh-water and marine aquariums.
Contents: 2 x 60 g (4.23 oz.)