P2 & P3 - ILGM Blue Dream 4x4 tent grow

Wednesday, Oct 25 (Day 57) - finishing up the first week of 12/12. I've been using a Bloom nutrient solution and the last couple of days there have been some discoloration-- first, slight yellowing of the edges of the leaves up toward the light of Plant 3. I raised the lights, decreased the power some, then increased the power but kept it farther away. Today, I noticed a few leaves have some yellow mottling, too. (I've asked a second grow question just now for feedback, but based on the first grow question's answers, it's likely related to the Bloom nutrient solution, which I'll be switching back tomorrow to the main Flower nutrient solution (which is the same as the Vegetative nutrient solution). Hopefully, everything will settle down within the next few days. I'll update details in tomorrow's comments and also update the Nutrients, above, with the details of the new nutrient batch. Grow Techniques-wise, I've Mainlined/Manifolded which involves topping and LST and HST (via supercropping) and defoliated, but this week I'm basically just letting growth continue. My plan is to trim the bottom 3rd of the plant at the end of week 3 of flower. I keep reading mixed messages regarding defoliating during flower-- some say keep all the leaves because they're what power the plant via light and will therefore allow more flower growth... and some say it's best to get rid of at least the biggest fan leaves because the light needs to reach the bud sites (?) I understand the need to ensure good air flow to prevent mold. Feel free to add your thoughts about it but please include your reasoning. ----- Thursday, Oct 26 (Day 58) - Dumped the remaining Bloom fertigation solution and made up a new batch. The Bloom was there the first week only of 12/12, as recommended by Jack's Nutrients. Now, back to the same combination from vegetative growth using 15-5-20: 1. 24 gallons tap water (EC 0.418) 2. 60 mL Armor Si (then wait at least an hour) 3. 121 grams Jack's Nutrients 15-5-20 and 24 grams Epsom salt (I ended up needing 182 grams and 36 grams to get close enough to the target EC...) 4. 120 mL General Hydroponics Diamond Nectar. 5. 3/4 teaspoon Yucca ..... Check and adjust EC to goal of 2.1 + tap = 2.518. Actual result: _2.416_ ..... Adjust pH to 5.8-6.2. Actual result: _5.9_ 6. 60 mL H2O2 I put up a trellis today to help with supporting buds and evening out the canopy. Ended up kind of accidentally supercropping a few spots.... And also: first clear pistils noticed! And also, also, see two most recent Grow Questions for information about what I hope has been mild S deficiency; pics above, too. ----- Friday, Oct 27 (Day 59) - Plants seem good overall. I'm not sure if setting up the trellis has more pros than cons. Pros would be more support for colas and maybe broader, flatter canopy and maybe easier to decide on what to trim/lollipop. Cons would be if the trauma and LST and accidental supercropping involved with getting the trellis in place, etc, ends up delaying some growth/development of the plants. I'm probably going to buy a small dehumidifier for the grow tent. First step is to be more diligent about vacuuming out the run-off from the fertigation. But I still think humidity will be no lower than 50-60% without a dehumidifier. I'm looking online and have it narrowed down to a few options, ranging from $45-80. Anyone have any recommendations? ----- Saturday, Oct 28 (Day 60) - pretty unremarkable day. ----- Sunday, Oct 29 (Day 61) - more remarkable of a day: cat chewed on line from bucket reservoir into tent and it leaked during fertigation at least at 0900 this morning, maybe at 2400 the night before. Not a ton of nutrient solution was lost. I was able to trim off that section and shift the valve which also pushed the bucket reservoir right up against the tent. Hopefully, no more chewing at this point. Then... I noticed after the 1800 fertigation that the bucket reservoir was empty even though I'd just filled it that morning. My guess is losing that slack in the line changed it so a siphon was created. I filled the bucket again and poked a hole at the top of the line on the inside of the bucket to prevent a siphon hopefully. We'll see.... Also, I sprinkled a little extra Epsom salt in my big tote reservoir in case it might help with any sulfur deficiency. Still just a bit of yellow mottling on a few of the newer leaves. I'm verifying pH is how it should be. The siphon I discussed above was effectively a flushing. ----- Monday, Oct 30 (Day 62) - I figured out that it wasn't siphoning going on. Somehow, I'd messed up the timer, seemingly copying the 5 minute mixing pump schedule to the fertigation pump outlet. So, instead of 30 seconds it was running 5 minutes. For a couple of hours, I also had messed up the AC Infinity fan controller settings, so it really hot in the tent. I fixed both issues. The fan controller I set so it'd keep the temp and humidity lower and that's working, so I no longer think I need a dehumidifier. That's good news, at least! I made another batch of fertigation solution: 1. 24 gallons tap water (EC 0.426) 2. 60 mL Armor Si (then wait at least an hour) 3. 121 grams Jack's Nutrients 15-5-20 and 24 grams Epsom salt (I ended up needing 182 grams and 36 grams to get close enough to the target EC...) 4. 120 mL General Hydroponics Diamond Nectar. 5. 3/4 teaspoon Yucca ..... Check and adjust EC to goal of 2.1 + tap = 2.518. Actual result: _2.516_ ..... Adjust pH to 5.8-6.2. Actual result: _5.9_ 6. 60 mL H2O2 A few leaves have nine fingers; see pic above of a nice example. ----- Tuesday, Oct 31 (Day 63) - Happy Halloween! Today, everything seems to be working fine. I tucked a couple of the taller branches to try to keep canopy even. More pistils noticeable. ----- END OF 9TH WEEK FROM SEED