I said, first person who says cal mag is banned.
cal mag, is usually a bottled mix.
calcium and magnesium from non salt sources are a different story. And most of the time you’d be just fine with just calcium to raise your cation. Really you don’t need that much, and in reality if you use a well sourced EWC, and top dress with that, you will find many of your macros and micros. Giving a boost of micros won’t hurt, but tbh you can grow amazing weed with base soil, ewc, and chopping/dropping cover drop with worms in soil... so a true living soul my friend in fact doesn’t need to be fed. Esp if it’s been rocking for a while in the same pot. With worms, and many bennies, chopping cover crop and chopping and dropping your leaves and using Bokashi feeds the soil.
You can in fact run living soil without ever feeding it...