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cocco/perlite, 50/50, clay pebbles, nuts ghe flora cal mag, silica, temp tank 17-19C day time, temp nuts pots 19-21C day time, new tubes, clean tank…
i don’t use any air stone into the tank, just a small pump 1min every 120min
inside tank the ph go up just 0,1-0,2 in 24 h the problem is under the pot.
day temp 22-26C RH 50-65%, night temp 17-18C RH 60-80%, grow box 100x100x200, scrog, air circulation by few cooling funs, good light (cobs cree)
how much water should always be under the pot?
I have a question:
i have 4 pot system, veg 4 months, sog, 350-450w led, co2 bag, air dome, good air circulation.
if I leave my pump Hailea 4chan max 10L/h ACO-9610 for 18/6h at minimum speed the ph increases from 5.5 tank to 6.6 – 7.0 under the pots EC 1.3. I see phosphorus deficiency hard purple red branches and purple veins under the leaves.
N / P / K / Ca / Mg / S / 105 90 165 60 50 65
I also tried to leave the pH in the tank 5.2 but it still exceeds to 6.5-7.0.
How much water/solution (ml) must always be under the pot ?
At the moment i have set up cycle timer relay 30 sec on 200 sec off to keep the ph below 6.5 under the pots (tank ph 5.5)
Please help. Thak you