Instant Ocean Reef Crystals Levels

However testing after a water change yielded these results.
Instant ocean reef crystals levels. Adjust salt level accordingly. Recommended specific gravity range. I ve been usng io reef crystals and haven t actually tested all the levels on a fresh water mix before adding to my tank just salinity. Instant ocean is formulated to provide a solution with levels of calcium and magnesium found in natural seawater nsw assuming you use purified water to dissolve the sea salt.
Recommended specific gravity range. Tap water most often contains dissolved calcium magnesium and other minerals that will add to the levels provided by instant ocean. 1 020 to 1 023 at 75 f. My theory is that instant ocean knows there is going to be precipitation so they include enough extra of each element to allow for precipitation while still providing elevated levels of each.
Measure specific gravity with an instant ocean hydrometer. 1 4 lbs of reef crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1 021. If specific gravity is too low add more instant ocean. Tightly reseal bag to keep out moisture.
Lf too high add more dechlorinated water. Every batch of reef crystals i ve tested after a minimum of 24 hours still contained high levels of alk cal and mag. Adjust salt level accordingly. If too high add more dechlorinated water.
Salinity 1 026 ca 480 mg 1600 dkh 9 8 ph 8 2.