Constantly fighting to keep my Ca up

[gregzz4]

I was dosing over 100ml/day each of Alk and Ca with 2-part before my tank failure and had full growth of SPS, if that helps.
Maybe your tank is just using huge amounts of product ?

[LeanneP]

Originally Posted by gregzz4

I was dosing over 100ml/day each of Alk and Ca with 2-part before my tank failure and had full growth of SPS, if that helps.
Maybe your tank is just using huge amounts of product ?

Yah, I was so sorry to hear about your tank crash! Really sucks. On the bright side, now you get to redo your tank! There are things I would certainly do different if I had a new tank!
My dosing has dropped a lot since I started using kalk. My alk is stable and I have no problem keeping it up. And now I just read on Randy Holmes site that lower ph should allow for keeping the ca and alk up even easier. I think that I need a chemistry person! My ph is about 8.2 during the day and is dropping to about 7.8 at night. Maybe that has something to do with my issue?

[gregzz4]

Originally Posted by LeanneP

My ph is about 8.2 during the day and is dropping to about 7.8 at night. Maybe that has something to do with my issue?

That's pretty common and not directly linked to Ca. It's more of a dissolved oxygen/co2 relationship.

[gregzz4]

Can you get your hands on some Calcium Chloride locally ? Maybe one of us out your way can get you some ?
All you need right now is 2 cups to mix with RO for a total of 3,785ml. Don't add it to a gallon, but rather mix it 'till dissolved in about 1/2 gallon, then add enough RO to make a gallon.
Once you have that gallon mixed, use this online calculator to help with the dosing amount needed.

My thought is to use the chloride to get your calcium up, and then carry on with what you've been doing to maintain the big 3.

I've never used Kalk or C-Balance and don't want to lead you in the wrong direction, so hopefully someone who has will speak up ...