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This week hasnt been fun, if you guys could help me id really appreciate it, my night heater stopped working for 3 nights, my temps dropped down to around 18°c all 3 nights, some of girls, went a bit pale and yellow and drooped, while some were fine, ive also noticed some of leaves on the greener plants have started twisting, ive never seen this before.
Lastly i have an autopot system, the pots sit in a small amount of water constantly, i have air domes in them also, i checked the ph level in the pot and it is 7.4 but my ph in my reservoir is 5.9, should i adjust the ph lower in my tank to balance this out at the roots
I would try and keep your PH at a stable 5.8 and only go up to 6.2 when you start to enter flower.
If you notice that PH is drifting your plants maybe they are feeding more then expected.
Have you been monitoring your EC of the feeding solution? Is it dropping a lot over 24hrs and does coincide with the rise in PH?
You could try and do a flush to get the PH back to normal and then go from there, but before doing this I would recommend making sure the above values PH/EC are checked first.
If you do not have a TDS pen I would suggest you get one.
Good Luck!
Bubbling air into water will change the PH of the water.
I made a mini graph of this and how it relates to using phosphoric acid as PH down on my one grow.
It all depends what type of mineral composition is in your tap water. If you using an air stone in the reservoir or bubbling before adding into the pots it should not flux to much.
One other thing to note as well, if the air your bubbling into the water is high in co2, it will form carbonic acid and lower the PH as well.
My tap water went from a PH of 7.3 up to 7.9 after bubbling for only 40min. The control went from a PH of 7.3 down to 7.2
growdiaries.com/diaries/129773-grow-journal-by-m0use/week/704902
look at the last photo for the graph/results.
I also bubbled the still water that I was using as a control at the end and its PH closely matched the bubbled one.
I tested using 1L of water in clear glass mason jars.
It was not a perfect test. I would have liked to test it over longer periods of time and see if it drops or rises from extended sitting periods.
Put an air stone in your reservoir if you don't already have one.
Good Luck!
This week they have recovered from having a few cold nights, they locked out, i flushed them and then let them dry out a little before putting them back into their autopot system, stripped them back yesterday and theyve react well already, starting to stretch a little but thats due to the lights being quite high, trying to get the feel for my 350r diablos, they might be small but they pack a punch....so far so good
I was a couple days late this week getting back to where this....the autopot reservoir was just under 50 litres, this isnt enough pressure to feed the plants the furthest away from the res, i caught it early so there shouldnt be any problems but will be more mindful now
Taken these pics and video today as im gonna start defoliation and lollipopping, such a shame visually as they look really healthy but its yime to start getting ready for those big nugs......hopefully
Stripped alot of fan leaves off and lollipopped them this week.......took these photos today, can hardly tell ive done defoliation, they grow so quickly....not that im complaining
Smokescreen420
