Refugium light cycle questions

[Jgro1413]

Hi all, So I understand that people normally run there refugium on a reverse light cycle with the main tank to keep the pH stable, I currently don't have any corals in this current tank yet so will running it on a reverse light cycle cause any harm? Thanks!

 

[geddavis]

it won't do anything different. algae and corals absorb co2 so and the less co2 the higher the ph so if there is something constantly absorbing co2 the ph stays consistently high.

 

[lapin]

No harm.
I cant see where it has made any difference to me, reverse or regular. I would not worry about the PH swing. It happens in the ocean.