How large of a ph swing is acceptable

[John08007]

Looking at the graph on my apex it appears that my ph swings between 8.35-8.45. I know we are shooting for stability, but wouldn't the oceans ph change at night?

What would be an acceptable ph swing? I have my refugium light on 24/7, I could put that on a reverse schedule to help some.

 

[Pistondog]

You're good

 

[Larry L]

It's fine. E.g. here is some data from three different reef locations in the South China Sea:

http://iocwestpac.org/OA1/14%20Malaysia_Zulfigar%20Yasin.pdf

 

[John08007]

It's fine. E.g. here is some data from three different reef locations in the South China Sea:

http://iocwestpac.org/OA1/14%20Malaysia_Zulfigar%20Yasin.pdf

I was looking for data like this but couldn't find any. I would assume that its good to have some movement in the ph since this would happen in nature also.

 

[YankeeTankee]

Swings > 0.3 are when I'd suggest making changes, you're well under that.