ELEMENTALS TRACE Cu is a high purity copper solution used for compensating cobalt deficiencies in reef aquariums.
With ELEMENTALS TRACE element solutions you obtain a cheap and easy possibility of dosing used up elements in your reef-tank.
Please read the manual very carefully and make sure that the solutions are kept out of reach from pets and children. Check the actually necessary amounts before each use and do not overdose. Although this technique is very gentle, an overdose may kill corals.