NYOS Alkalinity+ is a high-purity carbonate hardness (KH) supplement designed to quickly and safely raise alkalinity in reef aquariums. Stable KH is essential for coral calcification, resilient pH, and overall system stability. Alkalinity+ is clean, dosing-pump friendly, and ideal for daily maintenance or targeted corrections.
Fast, reliable KH boost: Supports steady pH and strong skeletal growth
Reef-pure formulation: Free of unwanted nutrients; safe for SPS, LPS, and softies
Dosing-pump ready: Consistent concentration for automated or manual dosing
Balancing friendly: Pairs seamlessly with calcium and magnesium programs
No clouding or residue: Mixes cleanly and works with skimmers and reactors
Precision control: Fine-tune KH without large swings
NYOS Alkalinity+ supplement
Usage and adjustment guidance on label
Purpose: Raise and stabilize carbonate hardness (KH/dKH)
Form: Concentrated supplement (reef-safe)
Application: Manual dosing or dosing pump
Aquarium Type: Marine/Reef
Manufacturer Part # (MPN): NYO-ALKPLUS
Test first: Measure current KH/dKH.
Plan the change: Aim to increase no more than 0.5–1.0 dKH per day.
Dose gradually: Add to a high-flow area or via dosing pump; re-test after 24 hours.
Dial it in: Determine daily consumption and set an automated schedule to maintain your target (typically 7.5–9.0 dKH for most mixed reefs).
Maintaining stable KH in SPS, LPS, and mixed reefs
Correcting alkalinity dips after water changes or heavy coral growth
Integrating into balanced Ca/KH/Mg dosing programs