I've been using fox farm products, both their soil and nute lineup, for most of my grows, and noticed the plants, no matter what size or genetics, always end up showing calmag deficiencies in the flowering stage. I still end up with some quality buds but can't help thinking how much better my plants would be in terms of yield if they got an extra source of calmag. I'm just wondering what other products people use to supplement the FF nutes - especially in flower - because it seems like straight FF nutes is not enough to bring out the full potential of these wonderful plants.