Been flushed any ideas am going to get some cal-mag today.
I don't think it's calmag def. Looks like it's cannibalizing itself for N. That's not bad approaching harvest. I stop feeding 2 weeks before harvest (plain water only) to reduce the nutrients stored in the plant. They look rough, but smooth tasting.
BTW: I've never used MiracleGro, but it's not highly regarded by MJ growers. Not just the passionate organic anti-Scotts, anti-Monsanto crowd, but most synthetic growers too. Some people do well with it and remain with it. But, you might be able to do something better at that price point (price point usually being why people choose MG).
If/when you're interested in alternatives, take a look at
Grow More Sea Grow (<<link). I bought two 5lb tubs and a 1.5lb container for $40 and that stuff will last 100-200. It's organic'ish. I've had a trouble with it acidifying the soil. I found feeding every other watering helped the acidity. I'm going to try weaker (1/2 tsp) every feeding and see how that works.
A lof ot MJ growers use
Jack's Classic. Similar price as MG.