Refuegum lighting question

bmkj02

Member
Ph are lower at night time. Refugiums usually help out at night so thats why you put your lights on at night when your DT lights are off
 

johnr2604

Member
It has to do with photosynthesis and the CO'2 ratios being higher when the lights are off. If you get the fuge on the opposite photosynthesis cycle then it offsets it some and keeps the PH higher.
 
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