Two Part Solution Problem- Help!

[dcw1sfu]

As Reefwars has stated dose equal parts based on your alk consumption. That's the real measurement you want to get right as it can play the most detrimental role in coral health. Don't get me wrong calcium is very important but it's much harder to damage your corals with slightly higher or lower then desired calcium levels. Once you have figured out your alkalinity demand you can start tinkering a bit with calcium.

Also the addition of either supplement has a lowering and balancing effect on the other. To get my levels right initially I tested daily at roughly the same time for about two weeks. Now if I need to its very simple minor adjustments.

I'm telling you though I think you will be more successful taking the kalk offline. It's great on its own, but hard to use with the addition of two part. I also was really reluctant to take my kalk offline but since I did I have had extremely stable parameters.

Is there a reason you are adiment on continuing to run kalk?

[reefwars]

Fwiw calcium and Alk have no effect on each other although its common to her that they do , adding Alk will not lower or raise calcium and vice versa they are completely independent of themselves and one don't change the others number and technically can't

I agree if your using kalk as a ph boost then sodium carbonate would be a Fine choice as well

[dcw1sfu]

Originally Posted by reefwars

Fwiw calcium and Alk have no effect on each other although its common to her that they do , adding Alk will not lower or raise calcium and vice versa they are completely independent of themselves and one don't change the others number and technically can't

I agree if your using kalk as a ph boost then sodium carbonate would be a Fine choice as well

You are right there is not a direct relationship that adding one will automatically drop the other. I looked into this further. I was misinformed.

[reefwars]

Originally Posted by dcw1sfu

You are right there is not a direct relationship that adding one will automatically drop the other. I looked into this further. I was misinformed.

I should note that This is only if we're talking about calcium chloride and bi/carbonate solutions though other Alk or calcium additives may be different , these two will only add what their supposed to and not affect the other

[The Guy]

What's your Magnesium level at, I understood from what I have read and listened to on the BRS site your Mag level needs to be at at 1300-1500ppm for your alk& cal dosing to be able to adjust & stabilize properly. I am no expert just sayin. Might be worth looking into.

[straightrazorguy]

Originally Posted by The Guy

What's your Magnesium level at, I understood from what I have read and listened to on the BRS site your Mag level needs to be at at 1300-1500ppm for your alk& cal dosing to be able to adjust & stabilize properly. I am no expert just sayin. Might be worth looking into.

I did. Yesterday Mg was 1480.

[straightrazorguy]

Update:
Today, the Alk was 9 dKH and the Ca 420. The Alk doser has been unplugged for 48 hrs now, so the alk levels are sustained at 9 by my kalk additions alone. I am still dosing the same amout of CaCl2 solution as ever....