Red Sea"s reef mature kit provides a complete program for the biological maturation of your reef aquarium, establishing full nitrification plus nitrate and phosphate reduction in a few weeks. By using Red Sea"s complete marine care test kit, you can monitor all essential water parameters during maturation. Reef Mature Pro kit includes Bacto Start - bacteria growth starter (60ml), Nitro Back - a concentrated blend of nitrifying and denitrifying bacteria (100ml), NO3:PO4-X - a biological nitrate and phosphate reducer (100ml), KH Coralline Grow - KH buffer with trace element complex for coralline algae and other reef micro fauna (100ml). Treats 250 liters.