It's really good your asking questions before messing with reef chemistry. I like to keep everything simple. I suggest you step away from the kalkwasser...lol. It may seem like a simple solution, and it does work, but you must know how it works and how much to use.
When a coral builds it's skeleton (LPS
) or coralline grows, they consume elements in the water. The 3 main being calcium, alkalinity and magnesium in proportionate amounts. It is always x
amount of ca
amount of alk
amount of mag. The proportion doesn't change. For this reason, if you need to supplement
, it's best to use a balanced solution that add those elements back in the same proportion. Kalk
will maintain ca
and mag has to be done seperately. The 2 part solution gets dosed in equal amounts (1/4 cup of each for example) and part 3 of the 2 part is a mag supplement.
I was kinda hoping to avoid daily dosing what happens if I am gone for the weekend?
OK, let's step back. The corals currently in your tank will use very little ca
. So first off, you know the ca
is 370 in your tank. Let's figure out how much is being used every day. Test today, test tomorrow...is there any change? Keep testing until you determine how much your tank consumes. Once that is known, you decide how to supplement. Easy 2 part, or figure out how much kalk
to add to your top off. It can't be dosed directly into the tank. So you need to determine, based on the tanks consumption and the amount of evaporation, how much you should use.
If I always mix my PWC to 400ppm CA by adding TurboCA everytime eventually the tank would always be at 400ppm CA.
Let's do some math. ca
level at 370, 20% pwc
at 400 = 376 now. Assuming ca
is maintained at that level and in 2 weeks another 20% pwc
. 376 ca
, 20% pwc
at 400 = 380 now. Another at 380, 20% pwc
at 400 = 384. You'll get there eventually.
So really why the 2-part soulution? that is to replenish the calcium/Alk absorbed from corals correct doesn't Kalkwasser do the same thing as a 2-part solution its definately easier for me.
With the 2 part it is known how much, exactly, to dose to maintain your levels or raise them. You can raise ca
from 380 to 400 in 1 dose with no problem. You can't dose enough kalk
fast enough to raise ca
that much, plus it will no only raise ca
, it will raise alk
, and since kalk
has a pH of about 11 (I think, it may be higher), adding too much too fast can cause major problems.
The beauty of the 2 part is once you get your levels right, you dose equal parts of each ca
Can I add the 2-part solution to the jug
No. You can not mix both of the 2 part solutions together and you can't add kalk