***New Addition***
Day 82 - Big tank change out. Had a massive drop in pH while EC rose some again (Only been adding RO water the last few days to keep tank in check around EC1.2-1.3, had jumped to 1.6. PH Drop was from 5.9-6 to 4.9-5.0 from it being stable for 4-5 days). After epsom salting the leaves last week, still noticing some lower leaves "Praying" and some dead and drying ones hanging from the plant. Its getting to about the mid-way point of the plant now (again, all that's under the scrog but...) but getting too close for comfort!!! Have edited my formula slightly for this change out to:
*2ml/L Bloom A & B (So 100ml of each in a 50L tank)
*1ml/L Silicon
*0.6g/L Epsom Salts
*1ml/L 9/18 PK Warrior (This was a f**k up, should have been 0.5ml/L - hopefully doesn't impact or isn't the cause for Mg issues - causing a lockout)
2ml/L Sumo Active Boost
2ml/L Fulvic Acid
2ml/L Sensizym
2ml pH Down to bring the lot to pH 5.7-5.8
This brought me to about 1.6EC, pH6.4 (Expected value was 1.521 from Hydrobuddy Calc for the * ingredients - My water bases at 0.2EC so a close enough calc!!!) - Higher than I have been putting in but i think most of the EC rise is from the Sulfate in the Epsom Salts (The Sulfur alone is about 0.32EC).
Also, with it coming late autumn and the tent in an outdoor cabin, got a temp controller to bring on a heater to stop the temp dropping below 16.5C...its now averaging out around 18.7 during the night so that's decent enough (Was potentially getting sub 15C - recent day temps have been 9-11C so could have been pretty chilly in there!!!). Also put my aquarium heater in the tank to bring the solution to around 19C as 1 of the plants has grew an absolute root mass into the tank itself - It is defying the Smart Pots and getting itself into there even after a pruning a few weeks back!!!
So, tank change happened a few days early but what the hey...passed the time with a hot whiskey or 5!!! :P
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Day 78 - Really haven't done anything with the girls the last week. Just been topping up with pH adjusted water, bringing down the nute strength a bit as they're taking on water but not really taking on any nutes. General monitoring.
Think I am going to have to get a heater out in the cabin as the night (IRL Day temps) are getting 15C and below so worried that could be impacting some nute uptake - Gave them an epsom foliar last night and then the bi-weekly Geisha foliar spray just before lights out this morning.
Apart from that, nothing new.
Happy growing all.