Spots,okay guys I'm to the end of my road with this.........its calcium deficiency by the looks of it right? Well I've been giving them 1tsp of calmag per gallon every two days and ph my water to 6.4 or 6.5 and still have this and its not getting any bett

you do know that those leafs with spots Wont get Greener or look better?  you have to keep your eye on the NEW GROWTH after u add new stuff to help those issues...dont throw a buncha new stuff at it tryna get those spots to go away on those leafs...if one the things ya try will werk you wont know till the new growth comes out bigger to see..GL

i wonder if this isnt a nutrient lock out situation... do you use RO or distilled water? if youvve had persistent problems i would flush and probably go half strength on everything before gradually increasing

I use 0% of calcium in flower...If it's flowering which it looks like I don't think it's a calcium def.

I'd probably try a little h2o2 in the solution in case you have root fungus. 

Although your cannabis plant will require less calcium in the flowering phase, the element is still needed for healthy bud growth. A serious calcium deficiency during flowering can negatively affect bud growth and yields, so stick to the recommended dosage. Have you checked the ph of your media/substrate ? Calcium competes with Mg, K, and Na. If these are outta balance you could have a calcium uptake prob. To me it looks like a lock out . Check the ph of your substrate. Sub and ChAs have you on the right track.  Peace