Dosing Mg

[Reef Pilot]

My Mg used to always be up in the 1400 range, but has been dropping, and getting a little low now, in the 1200 range. I have never dosed Mg, but may have to start.

However, I don't have a 3rd dosing pump. Does manual dosing work with MG or is that too erratic with adverse effects on the corals? Or could I add some Mg mix to my Ca dosing container and do both at the same time?

I have had a bit of an algae problem after I combined my tanks into one sump, and my P04 was up a bit for a while. And I vaguely recall reading somewhere that low Mg can also contribute to algae. Is that true?