1st Scrog-Blue Dream with Timber COBs

Welcome back…..Still dialing in the grow tent and transitioning from veg to flower. Feeding Time…..I was historically feeding 1-1.5 gallons per plant before with a little runoff from my 5 gallon fabric pots. I suspect that I haven’t been giving enough liquid for sufficient runoff in my previous grows which leads to some potential problems with salt buildup. Friday’s feed was 1.75 gallons each at 900ppm going in and almost 2100 ppm runoff water. Saturday, I fed 2.2 gallons each at 1050ppm going in and 1900 ppm with the runoff water. So the concentration of salts in the soil seems to be improving with each feeding. 4.75 Gallons fed at 1050 ppm / 1.75 gallons of runoff sucked up from drain pans at 1900 ppm Mega Crop. 3.5g/ gallon Bud Explosion .9g/gallon CalMag 13 ml in 4.75 gallons Ph Down roughly 3-4ml 1.75 gallons of RO and 3 gallons of tap Today…..I did three actions to address this high soil ppm concentration. I wanted to fix this before the flowering stage is too established. 1.). Fed 3 gallons total (1.5 each) of tap water with General Hydroponics Florakleen and CalMag to help flush salts out of soil….ph’d to 6.2. Didn’t measure ppm of ingoing liquid, but runoff ppm was down to 1400. Runoff ph at 5.9. Im happy with those numbers, but I hope the soil increases slightly. 2.). Fed 2 gallons (1 gallon each) with Megacrop (4g/gallon), Bud Explosion (1g/gallon), Sweet Candy (1g/gallon) and Epsom Salt (.5T/gallon). PPM was relatively high as a result of the Epsom salt…1500. That Epsom salt raised the ppm from 990 to 1500. Runoff at 1500 too. Future feeding will be kept below 1100ppm. This was a stupid move with such high ppm. 3.). Realized that 1500ppm feed is going to burn my ladies, so I fed 1 gallon each of tap water with cal Mag and Florakleen at 600ppm in. Flushed out 1500ppm runoff. Fingers crossed that I didn’t burn the plants with step 2. Vacuumed runoff and the tent is ready to go for another day. Friday’s runoff ppm was. 2100 and we are now down to 1500 ppm. As long as I continue to feed with plenty of runoff, I hope to be able to finish this grow without a flush. On a secondary note, I’m using 5 gallon fabric pots for the first time in a while. I forgot how much more humidity they put off in the garden with their porous sides. I think I’m going to switch back to plastic Warrior pots on my next grow to reduce humidity and water less frequently. They still deliver oxygen to the roots and they don’t allow for as much evaporation between watering. Here’s my rationale….I vent into my grow room where I run a dehumidifier. Unfortunately, I have no option for external venting. Since the fabric pots put off more humidity, I’m running my dehumidifier more frequently and for longer periods. So higher utility costs and more wear-and-tear on my dehumidifier is what I think I am experiencing. Is the extra cost worth it for the air pruning fabric pot??? I’m still working to dial in a stable VPD. Revised this table that I found online for the narrower grow room parameters. Planning to purchase a controller to automate some fans and lighting…..doing more research. Feel free to steal if it’s helpful….I borrowed it from GrowDoctor.com. Whew….today is completed by 7am. Productive morning. Next update on Wednesday and Saturday. UPDATES 10/10. Lowered lights from 18” above canopy (47,000 lux) to 13” above canopy (65,000 lux). Dimmed light to 55,000 lux as I didn’t want to make such an extreme increase. I will check the leaves for heat stress every 2 hours today to make sure I’m not frying my leaves. Oscillating Fans are blowing across the top of the canopy. 10/11. Fed Megacrop (4g/gallon) Bud Explosion and Sweet Candy (1g/gallon each). 6.5 ph. 1080 ppm going in. 1600ppm runoff water. Grew another inch last night. Adjusted light intensity from 55,000 lux to 65,000 lux. Raised lamp one inch and increased dimmer. 10/12. Fed 3 gallons of Megacrop at 4g/gallon. 10/13. Fed 3.5 gallons (1.75 each). 1050 ppm feed at 6.5 ph.m. 1600 ppm runoff. I’m happy with that. Used 3g Megarop per gallon and 1g/gallon of Bud Explosion and Sweet Candy. Next time will be Megacrop alone. Trying to avoid high ppm feeds. 10/14 installed new tent controller (ac infinity controller 69 Pro) and humidifier….arriving tomorrow. Should allow me to get my VPD more stable. I’m more than impressed with this controller so far. I can make adjustments to settings from anywhere with internet access. Pretty slick. No water or nutrients today. 10/15. Fed 1.75 gallons each with Megacrop (5g/gallon) and Bud Explosion (1g/gallon). 1100 ppm feed. 1700 ppm runoff. Note that I will increase to 2 gallons from this point forward to get more runoff.