Calcium issues!

[MizTanks]

I never top off! No need, no evap. I do WC every fri, 2+g. I just tested my new water and it reads: ph 8.4 cal= 460 and sg=1.030 it's a little higher cause I'm trying to raise it from 1.023 to 1.025
However all these readings change once the water gets into the tank. I was dosing cause of the low cal, it was suggested to me that I do it less of A then B. I'm not totally edu on the chemestry part of water as of yet.
I do got to say though, that my tank is doing great! No losses of corals (all softies) all other water parameters are right on, Kh is 12, 0 nitrites, 0 nitrates, 0 ammonia, and 0 phos ph has always been around 8.4 and my fishes are happy!!

[speedstar]

I never top off! No need, no evap. I do WC every fri, 2+g. I just tested my new water and it reads: ph 8.4 cal= 460 and sg=1.030 it's a little higher cause I'm trying to raise it from 1.023 to 1.025
However all these readings change once the water gets into the tank. I was dosing cause of the low cal, it was suggested to me that I do it less of A then B. I'm not totally edu on the chemestry part of water as of yet.
I do got to say though, that my tank is doing great! No losses of corals (all softies) all other water parameters are right on, Kh is 12, 0 nitrites, 0 nitrates, 0 ammonia, and 0 phos ph has always been around 8.4 and my fishes are happy!!

your doing better than me with all the zero's/ KH seems highs what brand salt?

[MizTanks]

Reef Crystals. 1 cup per 2 gallons give me an sg of 1.030 a ph of 8.4 and an cal level of 460. Am I maybe not changing enough of the water to raise my levels? Leaving to much of the old water in the tank? I thought a kh level between 10-12 was ok, no?

[Tom@HaslettMI]

Reef Crystals. 1 cup per 2 gallons give me an sg of 1.030 a ph of 8.4 and an cal level of 460. Am I maybe not changing enough of the water to raise my levels? Leaving to much of the old water in the tank? I thought a kh level between 10-12 was ok, no?

Ca and alk influence each other. If one is high the other is low. 10-12 alk is fine but you will have a tough time getting Ca levels up. I'm not familiar with the product you're using but are you sure that you're dosing more of the Ca part and not more on the alk part?

Here's a link to some info and a dosing calculator to help with Ca/alk balance: http://reef.diesyst.com/flashcalc/flashcalc.html

and another on a DIY two part system that many people (myself included) use: http://reefkeeping.com/issues/2006-02/rhf/index.php

HTH,
Tom

[MizTanks]

I'm using Kent CB Parts A&B and guess what, it doesn't say which is what? I do know that when added to the water part B turns cloudy, does that help?

[BeakerBob]

A would be the calcium and B would be the Alkalinity (turns water cloudy).

[MizTanks]

NO FREAKING WONDER!!!! 2ml of A and 3ml of B sure aint gonna raise my cal now is it? Jeeeeeeeez, well now I know Thank you guys, concider yourselves kissed!!! I'm changing almost 2g's a week. I measure!!!

p.s.

Ok, I just tested my Kh and it's at 10, good right? I also did a cal test after adding 4ml of Kent CB part A only and my reading is now 400. Do I still need to add part B?