Calcium in FO tank?

[htsou]

Hi,
I have FO tank and I wonder if I need to add Calcium supplement into my tank.

The reason I am asking is I saw some purple like algae in my tank and don't know if I need to put Calcium to help it developed.

 

[Billybeau1]

Which salt are you using and what is your calcium and alk measuring at this time ?

 

[jgoodrich71]

To get coraline algae to grow, you may need to add calcium, but the only way to be sure, is to test for calcium and alkalinity.

There is a popular saying around here: If you don't test for it, don't add it.

 

[asmodeus]

I have been keeping my tank with the FOLWR at
Salinity 1.023
Alk 11.2-12DKH
Cal i'm guessing around 350 PPM
P.h 7.9-8.0
And the
Coraline is growing vrazy uder my T-5's rran on my ice capp 660. The secret is the ALK keep it stable..


mike