sir_isOanswered grow question 4 years ago Hempkid is somewhat incorrect when he says:
"I'm thinking it may be excessive calcium. To much calmag with dolomite lime can do that."
You are more likely to have magnesium excess than calcium, as calcium generally far more abundant and constitutes more of the plant, more of a buffer.
Dolomite lime, specifically, has a quite high magnesium to calcium ratio, and calmag supplements often have very similarly high ratios.
Calcitic lime, which contains some magnesium, has a much higher calcium ratio (imo preferable in general since plants typically use MUCH less magnesium than calcium).
But, with non-actual soil (as in mixes with lots of perlite, coco, etc), that can often be a bit of a different story.