High Frequency Fertigation

Day 15: 3 nodes now visible on both plants. Day 16: Lights lowered. Canopy now at 20000 lux. At 22" from the canopy, my light is hanging lower than recommended by HLG but I am using a lux meter to ensure the amount of light isn't too much for my plants. I'm at home almost all day almost everyday so it's the perfect time for daily lowering of the lights and monitoring carefully. Day 17: Lowered light to increase LUX readings by another 50%. Canopy now at 30000LUX. One more lowering should bring us into optimal amount of light. Noticed a slight amount of curling on leaves last night so upped the ProCal just slightly. I make my mix using pre dosed calmag & potassium silicate water. I adjusted the final EC with this water to ensure calmag levels remain high enough to prevent the coco from "stealing" it in its own cation exchange points. Ended up adding Green Planet GPH Uptake to the lineup today for the PM feeding. Will continue at recommended dosage going forward. Also picked a foliar calmag. Made a foliar spray with recommended dose of GP Ocean Magic as well; adjusted pH to appropriate level. Did one application then ditched the Ocean Magic as you're only to use this as a foliar once weekly. Made calmag foliar spray and am now regularly using this in my mister. This will allow me to adjust with plain water as to keep the EC down and my nutrient mix stronger. Also had a revelation! Root Guard and GPH Uptake have very minimal impact on EC so therefore can be added after dilution as to insure a full dose of each of these are being applied at each feeding. Day 18: Ladies doing so great now in veg phase of growth. Calmag and Ocean Magic foliar application yesterday and continued Calmag applications throughout the day seem to have really given them a boost. Adding GPH Uptake seems to be a great addition to the lineup. It will take a few more days to truly notice the results.Looking like only a few more days until the Lamb's Breath sees its first round of LST. Noticing a bit of leaf curl on both plants. I have been fertigating with a litre of solution twice daily. I am going to reduce to once daily for at least today. Will try for smaller feeding tomorrow morning and see if I can still achieve the required 10-20% runoff with an EC no higher than 300 points more than inflow. Ceasing foliar calmag applications until plant stops showing signs of oxygen deficiencies, especially the Blue Diesel. Added a Wyze cam to the setup which is awesome. I can check the ladies all the time with out opening up and disturbing their environment. (THIS IS THE POINT WHERE LIGHT BURN WAS FIRST VISIBLE BUT I WASN'T AWARE!) Day 19: EC rose dramatically as i skipped evening fertigation (Day 18). This is NOT a recommended course of action. I was trying to adjust for what looks like oxygen deprivation to the root system of the Blue Diesel (IT WAS ACTUALLY TOO MUCH LIGHT!). I think this plant is lagging behind the Lamb's Breath a bit due to being bleached (TOO MUCH LIGHT!). I believe this may be the root problem (hahahaha!) and why it is a bit behind the Lamb's Breath. Droopy leaves are usually indicative of an over saturation of water in your media. I will fertigate 3 times today to correct EC issues. Still keeping EC to just under 1000 microsiemens. Reducing volume of solution given to the Blue Diesel by half. Day 20: Started LST on the Lamb's Breath. Slowly raising EC back up to ~1000 for the Blue Dream. Lowered the light by about an inch and shuffled the plants just a bit to get optimal light saturation. Everything chugging along at this point now. Day 21 & 22: Soooo I lowered my light too much. Started noticing signs of light burn on the LB. Watched some videos, read some articles then found my manufacturer's recommended hanging height. This HLG 100 V2 should be at 24" for veg stage. So thats where it got put back up to. Measured 20000LUX on the meter still which is within optimal range. I'm sure with the light up higher, the penetration to the lower canopy will be better due to the reflective walls of the tent. I removed the first pipe cleaner of LST on the LB to let it grow up toward the light a bit more. The one day of being tied down has had a dramatic effect on the production of branches lower down. I'll (probably) let it ride out for this week to allow unfettered growth before starting to tie down new branches. Days 23-26: Everything rolling. Figured out optimal EC is around 800 for inflow for both plants. Thinking this may be the optimal inflow EC for the Green Planet Line. Decided to pick up an HLG 65 V2 4000K light as well as an HLG 135w RSpec. Both are KILLER lights for sure. The 65 has really helped in veg phase. I would highly recommend it! Optimal light hanging height ended up being around 24" for the 65 which is manufacturers recommended height. Can't wait to see what the 135w fixture can do. Day 27: Switched lights to the HLG 135w RSpec today. Lowered light down to 90 watts so the lights aren't too much of a change from one day to the next. They are about 50% brighter than the HLG 65 V2 4000K when hung up to the maximum height my tent will allow. It looks to be a sweet light and the plants are getting new hues of green showing almost immediately.