FREE DELIVERY  DSR 2x NO3+ Nitrate reef supplement Addition for increasing the NO3 content in the water. Nutrition to prevent tissue loss of LPS due to a deficiency of nitrate. Corals with soft tissue appreciate nitrate. New formula which is 2x stronger than the ‘original’ NO3 +, pay attention to dosing and using the calculator.

 FREE DELIVERY  DSR PO4+ Phosphate reef supplement Prevent pale corals and bleaching, due to PO4 deficiency. PO4 is being absorbed by the rocks, so it may take a while to level up.