Refugium Lights Question

[mikelush78]

I heard that if you leave your Refugium lights on 24/7 then your main tank will not have a PH drop during the night or at least not as big of a drop. Also the Refugium growth will be the best with the lights always on. Is this true, or is it a bad idea to have the lights on the refugium on all the time?

 

[kcooley]

no plants need time to convert their carbohydrates into energy to grow. 16 hours at the most

 

[mikelush78]

So 12 hours would be a good amount of time for a refugium to have its lights on would you say? And to have the refugium lights come on when the Tank lights go off or that does not matter ether.

 

[Max]

That probably won't make much difference. A lot of people like to run them the opposite of their main tank due to night time ph issues but, imho it probably won't matter much either way.
hth
Max

 

[Mr.Firemouth]

Max, reverse photo-period lighting on the fuge will have positive results if the fuge is 30% the size of the main tank and if the fuge lighting is 3wpg. If the lighting is not high then you are right. No major difference.