alk and ca levels checked today


New member
Hello, alk at 9 and ca at 500.

75 gallon with coraline doing well. Have some soft coral frags.
What should I expect levels to do ?When should I recheck levels?(3- 4 days).

Have been dosing B-ionic.

Randy Holmes-Farley

Reef Chemist
Premium Member
Alk will decline over a day or two if you add no more. Calcium will also decline, but will hardly be noticed with our kits in that time frame. Maybe only a few ppm.

So dose both parts of the B-ionic equally, maybe daily or every 1-3 days, to keep the alkalinity where you want, and the calcium should mostly stay where it is. :)