Reef Crystals:
NOTE: To prepare small quantities, use 1/2 cup of Reef Crystals per each U.S. gallon of water. Mix as directed.
2. Stir vigorously to ensure a good mix. Although the Reef Crystals solution may be used immediately, we suggest aerating the water until it achieves oxygen/carbon dioxide equilibrium.
3. Measure specific gravity with an Instant Ocean® Hydrometer.
Recommended Specific Gravity Range: 1.020-1.026 at 77°F.
NOTE: 1.4 lbs of Reef Crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1.021.
4. Adjust salt level accordingly. If specific gravity is too low, add more Reef Crystals. lf too high, add more dechlorinated water.
5. Change 20% of aquarium water every two weeks to maintain optimum water quality.
USAGE NOTE: NEVER mix salt in an aquarium containing animals.
Reef Crystals is for established reefs with lots of alk and calcium consumption.
I would start with Instant Ocean regular salt