Magnesium low in reef tank.

[Jeremy Lain]

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[Jeremy Lain]

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[Jeremy Lain]

what is it just before lights out?.

you could also bump up alk to 10dkh with baking soda to see if that helps.

It stays the same all the time. I have a testing schedule and it has been at 7.8 and I have been testing weekly for about a month. I think I have done some of the tests at night, but I can check it tonight to see if it has changed.

 

[Jeremy Lain]

what is it just before lights out?.

you could also bump up alk to 10dkh with baking soda to see if that helps.

That brought the ph up to 8.0. Should I add more alkalinity and see if it goes up more then that?