my LR turn to white color why?

[g2345c]

Hi all,
I've notice that my LR is turning to white color even those that already coraline, why is that?

Thanks

 

[ChrisRD]

Is this new rock or something in an existing setup?

 

[g2345c]

Is this new rock or something in an existing setup?

It's in a 3 months old tank ... i cycled them for the first 2 months.
Does something wrong with my tank?
.

 

[Anonymous]

Coraline will do that during light changes and or system changes. It should come back (new coraline) if you keep the tank parameters inline.
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Honda CR125M

 

[ChrisRD]

I agree, for example it often happens when you change to new lamps (brighter) or expose the coralline to air/light during a water change. I'd check Ca/Alk/Mg levels to make sure everything is in line...

 

[g2345c]

Thanks guys.... I feel much better now, I just added a 175w MH to the existing 110 watt PC light