Mg expiration?

[Big E]

I have Mg liquid mix that is from Kent. It's a good 3 years old. It's in a opaque container instead of the white container it came in so some light has gotten to it.

Is there any way over time this can break down?

I can understand there may be some evaporation if the cap isn't perfectly air tight but other than it being slightly more concentrated is it still okay to use?

 

[Randy Holmes-Farley Verified Community Expert]

It will be good forever.

Magnesium for sure, right, not manganese and iron?

 

[Big E]

Yes magnesium..............I know the Kent tech M has some other trace ingredients and that was more my concern.

 

[Randy Holmes-Farley Verified Community Expert]

Yes magnesium..............I know the Kent tech M has some other trace ingredients and that was more my concern.

It should be fine.

 

[Big E]

Thanks!

 

[Randy Holmes-Farley Verified Community Expert]

You're welcome.

Happy Reefing.