Dosing calcium help!

[ahvrivera]

Ive been testing my calcium everyday for a week and found that my calcium is dropping from 420(after a water change) to 360( 7 days later)i am going to start doising 2 part calcium. My questions is should i add the 2 part calcium dirrectly in the sump or shoud i add the 2 part to my holding tank and let the ATO add it?

If i add it with the ATO should i mix the 2 part according to the size of the holding tank Or to the total water volume in my system?

Thanks in advance for your help!

 

[_Alex_]

use reef calculater it will tell you how much total to add to your water system to get it where you want. cant remember the name but they are all over the place, im sure someone can pipe up on one that is good.

 

[subielover]

Research dosing kalkwasser through your ato and you probably will not have to dose 2 part, and it will be much more beneficial for your corals.

 

[MoneyPit]

I don't have an ATO but I would think if you add it to the holding tank it will keep your calcium at a more consistant level throughout the week.
Here is the dosing calculator that I use Reef Chemistry Calculator

 

[firsttime]

I dose calcium twice a day using drews dosing pump, its good that you know how much yours drops in a week. Using the calculator on BRS website you can determine how much you have to dose.

 

[ahvrivera]

Thank you all for the responses.

Since i already picked up the 2 part calcium im going to try that first. But i am reaserching the kalk also. Thanks for the calculator. definately came in handy.
ill continue the testing for another week once i add the 2 part to the holding tank and see how that measures out. Thanks again!