Cal-Mag 2-0-0 supplement

Anyone use this in the flowering stage? If so, how often do you water with it?

Thanks!

I use calcium nitrate and magnesium sulfate in flower which is what you're asking about. I don't add any supplement because it's already part of the nutrients I use.

Awesome. This is what I have

Seems like that may be for vegetative stage. That would be useful in a coco grow or something like that during veg.

Bluephish said:

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Yeah you see, thats for Coco/hydroponic systems, which always have a deficiency of calcium unless you feed them extra.

All purpose.....you in soil or hydro?

Soil

I wouldnt reckon you have a calcium deficiency then.

White spots on only one leaf.

jcurtis912 said:

Yeah you see, thats for Coco/hydroponic systems, which always have a deficiency of calcium unless you feed them extra.

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Coco does not always have a deficiency of calcium if you use the proper base nutrients. I grow in coco and never use CalMag and I never get calcium deficiencies. The reason for that is due to the fact that the nutes I use have calcium nitrate as the nitrogen source. CalMag is just calcium nitrate and magnesium sulfate. Both of which any decent nutrient should have. Especially any coco specific nutrient. But some don't because they want to sell another product to make up for what they purposely left out in the first place.