So, I’m in my 1st week of flower. I’m transitioning my nutes from veg stuff to flower nutes, and I’m wondering what you all think about cal mag during flower. Is it needed? I’ve heard both, cut it or keep feeding with it. What do the experts say?
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Keep it. They need calcium and mag to support their rapid growth.
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It may depend on where you get your water. I have heard if you use RO water (I do not), calmag is a must. If you use well water (like me), something that has 150-200ppm of minerals to start (especially calcium), it may only be needed infrequently. I have never needed it. Good luck.
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I’m using R/O water so it looks like I definitely need the cm.