Red Sea NO3 PO4-X 500ml

Red Sea NO3:PO4-X is a reef‑safe, biological nutrient reducer designed to lower and stabilise nitrate (NO₃) and phosphate (PO₄) levels in marine and reef aquariums — reducing the excess nutrients that fuel algae growth and water‑quality problems.

The formula combines a blend of carbon sources and organically bonded elements that stimulate beneficial bacteria to consume nitrates and phosphates naturally, converting nitrates to nitrogen gas and binding phosphates — giving your tank clearer water, better coral growth, and fewer nuisance algae.

To use, dose about 2 ml per 100 L (≈ 25 gal) per day, ideally into a sump or a high-flow area; adjust dosage according to regular water tests until desired nutrient levels are reached.