Yellow Spots on my leaves for the very first time.

I've been gone a while, and just started growing again after a long illness. Thank heavens for MM!! Anyway, I am growing a strain of Aurora Indica and both plants are in their 7th week and gorgeous, but all of a sudden I'm seeing these little yellow spots on all of the new growth. I ran the leaf over to my favorite store, The Grow Store, and they diagnosed it as a CaMg deficiency. This is a first for me, as I always use new Fox Farm soil and go by the book on their feeding schedule. I've always had wonderful results and so this must be either a deficiency of the strain or I used seeds that weren't fresh. Either way, I've added the suggested dosage of CaMg+ by General Organics for the 'heavy feeding' (2 tsp per gallon) and fed both all the way through the bottom yesterday. I water when my watering stick shows 'dry'.

I'm wondering how long I should keep up this extra care and how long will it take before I should expect to see any results and exactly what results should I expect. Will the yellowing leaves return to their lovely green color? Should I continue this supplement even after I see results? Any help would be greatly appreciated.

mustangmaddi..

I use cal/mag until the forth week of flower but I only use it at half strength dont want to much . The damaged leaves shouldn't get worse and the new leaves should be fine.