Reef Colors Pro is an high definition analytical Multi Test kit (I2 - 50 tests,K - 40 tests,Fe - 50 tests), for accurate dosing of Reef Colors supplements.
Red Sea Algae Control Multi NO3/PO4 Test Kit Information Algae Control is an high definition (NO3 - 0.25ppm, PO4 0.02ppm) analytical comparator test kit (NO3 & PO4 -100 tests each) - incl. professional colorimetric comparator...