Day 15, having a right week of it!!! Thought I was on top of the chlorosis (Thinking Ca/Mg issue) and then I start getting issues that make the plants look like they're getting N Toxicity!!! Now, in all fairness, by fixing the Ca/Mg issue, I may have created an N issue - My CalMag does appear to have N in it - @Shogun any helpful ideas here for me please??? :)
What getting me is plants are drinking (Not massive amounts, but they are drinking), EC is staying stable and have standard pH drift of about 0.1/day towards neutral, this should be bang on. Roots are good as they're popping through bottom of the root pouch/air pruner pots (These are 12L each so a number of roots are over 6inches long this would mean) and growing into the run off water (I may mod my Wilma and make it a psuedo bubbler too but then this may cause all sorts of issues with my expected water volumes, etc.!!!).
Wondering if anyone on here has had issues with either wind burn (From a 7" oscillating fan) or seen low humidity issues in veg that could maybe help? I am going to grab a humidifier for the tent (Should be here Wednesday) to see if that helps (Liberally spraying the place with pH adjusted water, added open water sources to the tent, etc.). Also, with the roots popping through, may grab some Sensizym to clean up dead root material & fulvic to ensure no salt build up round the roots.
As I am stumped by what I am seeing (Things seem to contradict each other), I ran 2L of pH adjusted water through each plant on Sunday 30th and held of feeding to ensure salt build-up wasn't happening in the clay, round the roots. This has topped the tank back off to around 50L, brought my CF down to 10 (1ec) and I dropped feeds to 3 per day (15mins after lights on for 15mins, 1 in the middle of the cycle and 1x15 near lights off). The fact there was no EC upping with such a small amount of water, again makes me think the "Nute Burn" isn't caused by the feeding and possibly by humidity (or lack there off - it can get down to 35% in there).
I know it goes against all the SOP's, but in general, the air coming out of my tent is cool; It does go into the main room where the tent is, but is a large cabin and has the door open most of the day with kids running in and out of the other room (I have a security gate to keep them out!!! :P Also, the airflow crosses my ballast, keeping it cold to the touch); until the humidifier arrives, can i recirc the air back into the tent to up the humidity? I have a dehumidifier in the room (On but set to 90) to check the humidity in the main room and it is creeping up (Was at 63% there when I was re-doing LST while tent was at 44%). My lights on period is 4pm to 10am but don't want to turn the fan off as the tent is beside a SW facing wall so is getting heat for a couple of hours before Sundown (around 9pm now). Or, would it do much damage to change to 6pm to noon for lights on? Don't want more of a shock to their system as they've settled into 18/6 from a 24hr under CFL at seedling.
Again, anyone who sees this and may be able to help, please do!
Day 19 and 21 added