White Widow Auto - Double the Trouble

I wasn't sure whether or not to mark this week as a week of flowering or veg because half the plants flowered for most of the week and the others were in veg still. Anyways, I noticed last night that plant 6 was developing a calcium deficiency and I was planning on watering it today and adding some cal/mag. I opened the tent and what was a couple of tiny patches turned into a full blown calcium deficiency over night. I watered in some cal/mag today and I hope the damage will stop spreading. Plant 7 is also showing what looks like the first sign of a calcium deficiency so even though I watered it yesterday, I'm going to give it and all of the odd numbered plants a small feeding with just straight up cal/mag tonight and I'll keep the pH around 6.7 to 6.9 to make sure the roots suck it up. On top of that plant 7 is showing a nitrogen excess which doesn't make any sense to me. Plant 1 is showing a magnesium deficiency so I'm sure they all need some cal/mag at this stage. I'm going to use less Micro when I use cal/mag going forward because last time around everything looked like it was showing nitrogen excess at some point and the cal/mag I use is 2-0-0. I also turned the light up to full power last night and the heat now requires that the exhaust fan runs as long as the light is on. I raised the light pretty high so they've got some room to stretch and they're still getting around 500 PPFD or higher at the canopy level right now. Heights are pretty even except for plants 1 and 3. Plant 1 looks like it's just the runt of the litter but I'm interested to see what it produces. Plant 3 is the shortest and it looks like it might produce some super dense buds like one of the plants did last grow. Overall I'm thinking that things look better at this stage that than did my first time around so I'm optimistic and excited to see what happens.