Correction 79 degree*
Wow @Zee your girls are looking awesome, good work!
Thank you @Bubbles.
looking very nice @Zee
Plants look beautiful. Discovering this thread at 11 last night was bad, read every post and went down a rabbit hole of Hellraiser advice.
Lol! Iāve done that.
@Zee your girls are looking really good!!! Awesome job!!
Looks great, nice and healthy. Filling up that tent!
Looking good! 
@Hellraiser, sorry that came across as a statement, it was a question for you.
Iād keep giving her calmag ever other watering at this point between the feedings, she may be finally running out of her excess stores of it.
Yep, 3 gallons is good, looks like she took it well.
Looking great!
Hell, I think you can shine the light on my thought process. The AK after being flushed earlier, has a few leafs just yellow and black now, not an issue. It has me reading the plant. When we flush, are we flushing the soil, or roots? I need a freaking joint, hope I make sense.
Roots feed off soil, I get itā¦ flushing removes access of built up nutesā¦whatās in the roots after a flush?
Thanks Oly, the AK is a sensitive one, canāt wait to get them under a SCROG to even her out. I clipped almost all her fan leaves off, she looks drunk.
Thatās a good question! Hereās my guess to the answer.
After a flush: Osmosis is still happening and draws the higher concentration of nutes from the root system and flushes it away from the plant. So just washing the soil way is just part the solution. The other part is continuing to provide water to draw the excess nutes from the plant.
When that drains, you truly have a neutral growing medium to build your nute program.
Very logical @OlyBoy98503. I have to respond to a lot of work e mails on a daily basis, so many, I wonāt read a book or articles in depth.
However, my interest in growing as a hobby has proven me indifferent, I now know calcium builds up cell walls in plants, increasing their intake/tolerance of heatā¦
Why would the access build up of calcium force itās way out of the leaves, verses being flushed outā¦ probably because of the long a$$ root system it has? I need to call it quits for the day.
Iām going to take a stab at this question too, but Iām not sure how accurate my answer is.
Calcium is an immobile nutrient, unlike magnesium or nitrogen which are mobile nutrients. If a plant has a nitrogen deficiency, it can move plant-stored nitrogen from lower leaves to upper leaves. That is why youāll see signs of chlorosis (yellowing due a deficiency) starting from the bottom of the plant and moving up. Too much nitrogen, store it in the bottom leaves and they get really really green until then burn. The plant is literally moving nitrogen from one part of the plan to another.
Calcium (on the other hand) is immobile. Once the plant delivers the immobile nutrient to the destination, thatās where it stays. And the spots from excess are signs of necrosis (death of the plant tissue). Those spots are dead, but the rest of the leaf should still function as it should.
Leaves that have yellowed due to nitrogen deficiency (chlorosis) will turn green again when nitrogen is fed to the plant. Likewise, you could force chlorosis on a plant by flushing the nitrogen from the plant using water and osmosis will continue pulling the nitrogen from the plan through the roots. Calcium is immobile. It aināt leaving the plant with flushing. Flushing will remove the calcium that is remaining in the growing medium, but it canāt leech it back out of the plant.
Thatās why it appears as though the calcium is being forced out of the leaves. The plant literally has no other way to get rid of the nutrient that overwhelming the plant.
I have no idea how on point that answer is, but that is how I seem to understand it.
GENERALLY SPEAKING: Youāll see issues with mobile nutrients starting with the bottom of the plant and moving up. Youāll notice issues with immobile nutrients on newer growth.
Hopefully someone with more experience can explain it a little better than I can.