Adjust salt level accordingly.
Instant ocean reef crystals levels.
Tightly reseal bag to keep out moisture.
1 020 to 1 023 at 75 f.
Measure specific gravity with an instant ocean hydrometer.
If specific gravity is too low add more instant ocean.
Adjust salt level accordingly.
Salinity 1 026 ca 480 mg 1600 dkh 9 8 ph 8 2.
If specific gravity is too low add more reef crystals salt.
1 4 lbs of reef crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1 021.
Every batch of reef crystals i ve tested after a minimum of 24 hours still contained high levels of alk cal and mag.
However testing after a water change yielded these results.
1 5 lbs of instant ocean is formulated to create 5 gallons of saltwater at a specific gravity of 1 022.
Recommended specific gravity range.
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.
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.
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.
Lf too high add more dechlorinated water.
Tap water most often contains dissolved calcium magnesium and other minerals that will add to the levels provided by instant ocean.