Calcium dosing intervals for large adjustment

[TheRealBigAL]

Originally Posted by Koresample

I need to increase my calcium from 340 up to about 420 and i plan to do it in 3 doses. Is 12 hours enough time between doses?

I checked my PH about 6 hours after the 2nd dose (which i did 12 hrs after the first dose) and it was stable at 8.4 and none of my corals, my shrimp or Mandarin look stressed. After the first dose my calcium was at 380.

My Mg is at 1150 and my dKH is 11.

You already put a mandarin in your tank ? I thought you were going to hold off on that until your tank was more established ?

[fkshiu]

No - you should only raise Ca 20 or 30 ppm at the very most (preferably slower) within a 24 hr period. You must also raise it along with your Mg (which is currently low) or it will begin to precipitate out of solution.

Be careful of making big adjustments too quickly.