calcium

[mbettman]

I was told to start using liquid calcium to get better growth of coraline and corals. I use salt with calcium and magneseum. Am I going to overdose my aquarium?

[Steve]

If you are going to dose calcium you need to test for it. Alk, calcium and mag are all important to corals. Depending what type of corals how many and their growth rate all 3 will be used up and need to be added. I would get a test kit for each. What type of corals do you have?

[mbettman]

Zoa/mushrooms/leather/duncans/others.

[lazylivin]

Assuming your are using reef salt you probably aren't consuming much. Like Steve suggested don't add unless you are testing for it so you don't overdose. Are you using a PH buffer?

[mbettman]

I am using instant ocean reef crystal salt. No ph buffer.

[HUNGER]

ya test befor u start adding

[kattz]

What they said.  Softies (your duncans are the only LPS's you have listed) like you have aren't going to consume as much Ca or Mg as LPS or SPS, but you still need to be testing for alkaline hardness (Kh) at least weekly and taking the appropriate response at a minimum.  As they said above, at least test for Kh, Mg, and Ca, because if your Mg disappears, your alk and Ca will also skew.

Kev