Hope you are all well!
Please could I have some assistance, my babies are on week 4 or 5 of veg, grown from clones, but in the past week or so I am seeing rusting on the leaves, general yellowing between vains and some curled leaves which make me believe I have a cal or mag issue. Some pics are below
Setup:
ISH F bar running at 50%
Canna coco a and b, rhizoctonic and cannazyme as per their grow guide calculator on their website, ppm ends up around 850-900ppm and is just short of 200ppm fresh from the tap
Ecothrive coco pro
Dynomyco
15L pots
pH 6.0
RH fairly stable at approx 70%
Day temps about 23 until my heater comes
Night temps about 19
Pics:
Any help appreciated!!!