Things did start to green up. Where the leafs where showing bad yellowing, things haven't really changed. The one tsp/liter seemed to work and I'll definitely add it to my feed schedule to reduce risk of deficiencies for future grows. I also will change my calmag dosage for future grows. I have a better understanding now of the plants needs in coco now. Thanks for the help mate.
On a better note, the CDLC is as healthy as can be.(crazy how different the nutrient needs are between these too.) Her buds are starting to swell and is already starting to get pretty frosty. Thanks for the help mate. With this autopot system with one res, it's been hard to accommodate each plant. I'll have to do a better job of matching plants up for the next grow.