If specific gravity is too low add more reef crystals salt.
Instant ocean reef crystals levels.
1 4 lbs of reef crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1 021.
1 5 lbs of instant ocean is formulated to create 5 gallons of saltwater at a specific gravity of 1 022.
1 020 to 1 023 at 75 f.
If specific gravity is too low add more instant ocean.
Measure specific gravity with an instant ocean hydrometer.
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.
Tightly reseal bag to keep out moisture.
Salinity 1 026 ca 480 mg 1600 dkh 9 8 ph 8 2.
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.
Adjust salt level accordingly.
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.
Every batch of reef crystals i ve tested after a minimum of 24 hours still contained high levels of alk cal and mag.
Recommended specific gravity range.
Change 20 of aquarium water every two weeks to maintain optimum water quality.
However testing after a water change yielded these results.
Adjust salt level accordingly.
Tap water most often contains dissolved calcium magnesium and other minerals that will add to the levels provided by instant ocean.