Seachem Reef Advantage Calcium 250g
Directions for use:
Use 5g (1 level teaspoon) per 40 gallons twice a week. Dissolve in at least 250 mL (1 cup) of freshwater. 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 g/150 L will raise calcium by about 12 mg/L. Quantity or frequency can be adjusted, but do not exceed 10g per 150 L per day. Thereafter, use as required to maintain calcium. EXPERT:
After determining the calcium consumption rate, set up a continuous drip system. Use the following formula to determine how much to add to your top-off water: m=vc/400 (m=grams to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). For example, if you want to raise calcium by 25 mg/L in a 200 liter tank, then you would add 200x25/400=12.5 g into the top-off water. [For reference: 1 gallon*=3.8 liters, 5 g=1 teaspoon*]. HINTS:
If used with Reef Calcium, it is not necessary to exceed 380 mg/L total calcium. Use Reef Status: Calcium to measure calcium.
* Ingredients and dosage listed are for informational purposes only and are subject to change by the manufacturer. Always refer to the manufacturer and actual product label/inserts for current ingredients, recommended dosage, precautions and warnings before use.