Agreed and good point. Would love to hear from others why they are feeling the need to supplement cal/mag with this as opposed to just mag? This has nearly 2x the calcium of maxibloom and more than one a half times the calcium of 6/9
When I did use cal/mag at full strength, the extra ca started to lock out the P after a few weeks. That's what got me going with just epsom. So far, so good.