Calcium and Alkalinity

[Imyourhuckleberry]

Is kalkwasser sufficient enough to maintain a wall to wall SPS tank?

 

[Brandon Smith]

How big is your tank? If it is wall to all you may want to look into a calcium reactor

 

[Imyourhuckleberry]

I'm sorry I meant mostly SPS in the tank, I have 120 gallon and a 40 gallon sump