Glue for quick adjustment in the cement base designed for collage of large elements of natural rocks and ceramics. It has no toxic compounds being totally harmless to fish and invertebrates. form of use: a small amount of glue must be mixed with water to obtain a uniform plastic consistency, and immediately initiate the connection of the elements. We recommend the glue to "dry" in case of need to glue under water, should turn off all pumps circulating and flow, paste the individual elements and let Harden for about 15 minutes. Instant turbidity of water is not harmful. In populated tanks we recommend that you paste no more than 2-3 items a day, because the resulting residues may slightly increase the PH in the aquarium.