Seachem Reef Complete 250ML

DIRECTIONS:
Beginner
Use 1 capful (5mL) per 80L (20 US gallons) twice a week. Check calcium every 2 weeks and adjust amount or frequency accordingly.

Advanced
Check calcium level, then follow addition regimen above until calcium is adjusted to 380-420 mg/L. Each 5 mL/80 L (20 US gallons) will raise calcium by about 10 mg/L. Quantity or frequency can be adjusted, but do not exceed 12.5 mL/80 L (20 US gallons) per day. Thereafter, use as required to maintain calcium.