Raising Mg: How fast is too fast?

[Daniel@R2R Verified Admin]

I know when it comes to alk, you need to go slow, when it comes to calcium, you can raise it quickly without issues... but what about magnesium? How quickly can I raise levels to get back in range?

 

[Crabs McJones]

From what I understand you can raise it quickly as well. With brs 2 part you're suppose to add it once you finish up your alk and calcium and you can add it all at once.

 

[Reefs and Geeks]

I've read 100ppm/day is recommended max. I've done 150ppm raise in a day without any issue at all, but don't know at what point an issue might arise. Mag supplements often raise salinity as well, so if doing a large dose, double check salinity as well.

 

[Modest]

What' the gap you need to close? Is your live stock experiencing issues with the low Mg? Answers to those two questions Will give you lot of room to raise your Mg levels.

 

[Daniel@R2R Verified Admin]

Mag is currently at 949

I haven't kept corals in a while so wasn't really watching much besides salinity and pH. Now I'm trying to get back in the coral game, so gotta bring the mag back up.

 

[Modest]

I would do 50/day. This get you back on track within a week. Good luck.

 

[Randy Holmes-Farley Verified Community Expert]

I would caution very strongly that magnesium below 1000 is far more likely to be test error than a real result. Get it double checked before raising it much.

 

[Vansaquaescape]

What’s a good magnesium additive