Night testing

[wazzifam]

Hi everyone, Is it ok to test at night after the lights have been off? Since I dont seem to be here in daylight hours?
Just curious,
thanks,

 

[goldenmacman]

yeah y not.. same water all the time

 

[Midnight]

I think PH is really the only thing that changes with light. It goes up when the lights are on and lower when the lights are off. I THINK

 

[wazzifam]

I thought something fluctuated with the light but I couldnt remember which it was.