Three days lights out. Change ALK, Phos.

[igadget56]

I have read on R/C many times. If you have a lot of algae and test phosphates they will test low because the algae is using is it up. If that is so, and you go lights for 3 days and the algae is gone, wouldn't the phosphates reading come up?

Same with ALK and CAL. If you keep dosing the same amount and go lights out, then the coral wouldn't be feeding then the ALK and CAL would rise.

Make sense?

 

[Randy Holmes-Farley]

Phosphate might increase, or it might go somewhere else, depending on the tank setup.

Corals may still calcify for a while in the dark.

 

[igadget56]

The phosphates didn't change, alk went up 1.0

Thanks Randy.

 

[Randy Holmes-Farley]

Well, I suppose that is good.