Seedsman Northern Lights (Auto).

December 11th: As 3 out of 7 plants have shown their pistils, I have switched out the MH for an HPS bulb. I'm still recording this week as veg until the plants stop stretching and start budding. December 12th: It's been 3.5 days since I last watered with the stronger dilution of nutes 500ppm (double the amount of GMB). I should've mentioned that last week numbers 4 and 8 had the lower leaves yellowing, becoming very "soggy", and eventually drying up and dying. I suspected that this was a lack of nutrients which was one of the motivations for following TANG's feeding schedule which called for 1mL per liter of nutrients as opposed to the .5mL that I had been using. Fast forward to today and I have noticed that numbers 4, 5, and 8 are showing slight burn so I'm not sure what was causing the lower leaves to become soggy and die. Next watering I am going to cut down on the nutrients to .75mL/L and give the plants 3 liters each to rinse away some of the nutes with a lighter dilution which was a suggestion I read somewhere some forums. December 14th: Decided to water the plants today. As mentioned in the previous week I've been concerned that I've been giving my plants water that's too acidic (5.9pH). My base water is actually in the mid 7s but after adding the pH perfect nutes, it brings the pH down a good amount. Here is how the watering went down today. Starting Amount- 24L Start pH - 7.4 Start ppm - 54 CalMag Addition = .75ml/L x 24L = 18mL Post CalMag pH = 7.4 Post CalMag ppm = 190ppm GMB Addition = .75ml/L x 24L =18mL Post GMB pH = 6.25 Post GMB ppm = 417 At this point I wanted to try to bring the pH of the water up to 6.5-6.8, so I added 1L of base water (7.38pH), and the pH didn't change! So I added 1 more Liter and the pH still didn't change! It actually went down .05. Post 2L Addition PPM = 390ppm Post 2L Addition PPM = 6.2 I gave 3L to each plants in an effort to give it a bit of a rinse. This is double the amount of water I gave it last week. There was about a 33% runoff. I inspected the calyx of the plants. 3, 4, 5, 6 and 8 are showing pistils. 2 and 9 are showing calyx, but can't really tell if there are pistils coming out. Keep in mind that 2 and 9 were the ones that have always been growing slower than the others... And of course there is #1 with the brown spots on the leaves of the bottom 3 nodes. It's growing well and the plant looks super healthy aside from the patchy leaves. And I'm confused as to why the others have been growing branches for a couple weeks now while this one keeps getting taller but not growing any branches at all. I was about to throw it out of the grow today, but thought I'd give it a flush with pure base water pHed down to about 6.5. I ran about 9 gallons of water through it. Ah, one last thing. A few days ago while LSTing number 8, I noticed a tear in the stem midway up the plant. Nothing terrible, but I gave it a split by cutting a slit down a straw and then wrapping that around the stem as a cast, and then putting a bit of masking tape on it. Today I took it off and aside from being a bit brown it seems fine.