Day 8 😃
Big first step adding the GHE nutrient solution to the water. Will keep an eye on the progress in hopes I didn't add too much/little. Water temp is always around 28 - 29 so I hope the air stone I added along with the built in pump helps keep the oxygen at a decent level. As the roots grow, I plan to move the air stone to the vicinity of the most concentrated root growth.
I'll also need to get proactive and find a root inoculate (root rot remover) that doesn't break the bank for if/when I might need it (fertilizer prices nowadays am I right?!)
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Day 9 😀
Turned off the fan and humidifier overnight to see what the readings would be in the morning. Humidity hovered around 50% according to the security cam and the temp never dipped below 27. Good to know for the flowering stage or if I want to use the same closet as a dry room for post harvest cultivating. Turned the fan and humidifier back on and the temp/humidity went back to what it was yesterday in about 25 minutes.
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Day 10 😐
Started noticing some yellow spotting and edges on the two original fan leaves. The others appear fine with regards to colour, but they also appear to be a little stunted or are having a growth issue. Reduced the water temp by adding ice cubes which in turn lowers the PPM. Hoping this helps.
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Day 11 😟
The yellow has been accompanied by some brown. My thoughts are that it might be nutrient deficiency due to pH lockout, nutrient burn as I put too much in and this is just a baby autoflower, or water temp too high - take your pick! I siphoned about ¾ of the water out about 4 cups at a time while adding some Brita filtered tap water in hopes that maybe it might be the chlorine from the tap water that was causing some problems. This adjusted the pH while lowering the PPM so lets see what happens. pH was always a bit on the high side so I thought I’d try keeping it between 5.5 and 6.0 to see if that has any effect. I picked up some Cannazym in anticipation of the hot water temps leading to bacterial problems in the reservoir. I've adjusted all the nutrients levels by dividing my original numbers by 4 in an attempt to estimate the amount of nutrients left in the water after semi-flushing the reservoir.
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Day 12 😟
Yellow/brown action seems to have stalled slightly after yanking all the nutes out of the water. The two original leaves look done for; but we’ll see if she can recover. They’re really hard and stiff to the touch. Hoping it doesn’t spread or happen to any new leaf development.
Keeping the pH between 5.5 and 6 while flushing most of the nutrients from the water. I continue to siphon/top-up with cold Brita filtered water or ice cubes and balance the pH as needed.
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Day 13 😕
I think I might have halted the nute burn; or at least slowed it down. It hasn’t gotten any worse or spread as quickly or with such volume. The time it took for the first leaves to become ~70% yellow with some serious looking rust (roughly 24 hours) leads me to believe the newer leaves will be fine - as long as I don’t repeat the same mistake - too much nutrients; far too early. The sharp edges and rigidness of the effected leaves appears to be going away as they move and flex a bit more when touched.
Growth appears to be all over the place. It looks like the recent large leaves are a tad deformed and new growth around the stem is super compressed (almost certainly due to the nutrient burn). I switched the light cycle to 24 hours for the night to try and burn off any extra nutrients (does it even work that way?).
Hoping tomorrow has better news in store *fingers crossed*
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Day 14
New growth is starting again. Older leafes continue to get worse but the rate at which it's happening has slowed down. New water change this morning with 4ml of nutrigrow and 1 ml of CalMag. pH is at 5.8. If new growth stops or starts rusting I'll flush again without hesitation.
Those leafs look like iron some strands need more or less of certain elements..ii see u gave some cal mag. Chk if it has iron most do..also chk ph of soil or medium..good luck