Do reverse lit scrubbers stabilize PH in like refugiums do???

[duganderson]

I've read that reverse lit (lit when main lights off) refugiums with cheato help stabilize the PH in the main tank. Does this also occur with a algae scrubber?

I've read that the algae grows in an algae scrubber grows even when the lights are off so maybe this is not the case for algae scrubbers.

[RkyRickstr]

Yes its still the case. Photosynthesis is what keeps ph up. If you run oposite you will always have photosynthesis going on, in your scrubber and in the tank.