As an Amazon Associate we earn from qualifying purchases. Buying through these links costs you nothing extra and helps keep the app free.
What one dose does
PARAMETER
1 ml / 100 L
Nitrate
+0.1893 ppm NO₃
To raise nitrate by 2 ppm NO₃ in 100 L: 10.6 ml.
How it’s used
For nitrate-limited (ULNS) tanks. Test NO3/PO4, dose to ~3 ppm nitrate, retest after 24 h; hold ~3-5 ppm while phosphate falls to 0.01-0.02 ppm. If nitrate stays up, add a carbon source (Reef BioFuel).
Cautions
• Do not overdose.
• Two label strengths in circulation; confirm on bottle.
Sources
Brightwell itself says more than one strength has been sold and to follow the bottle. A Reef2Reef user (search snippet) reported side-by-side new bottles labeled 5 ppm and 2.5 ppm per ml per gal. App should prompt the user to confirm label strength.