hello
so first off am sorry to hear about the slow growth.
a couple thoughts . if it is not too big of deal start some new ones well as keep these .
now if you can download a free light meter app from the app store that would help .we can simply do a light test . PAR is the spectrum or light quality, footcandles is 4h3 intensity or volume.we want footcandles
a previous person mentioned that he thought they were to close to light. I tend to agree. the potting soil looks like crap too but hard to say . I like promix Hp .just sphagnum moss and perlite. no fortification so 6ou can have more control over 6our nutrition and not be guessing what the plant is getting . promix HP is cheap and excellent drainage.
there is NEVER a time when your plants will need one mineral over another . I am not sure why call mag is so popular at it is 70% of all water ec salts . calcium and magnesium carbonate. it I recommended like it is special. its chalk and chalk that should be already In your complete 12 mineral feed formula .
light for seedlings and young rooted cuttings 1500 footcandles.
veg 2000 to 3000 fc
bloom 2500 to 4500 fc .
feed ec young plant 400 to 600 ppm
feed normal plants 800
waste ec of runoff water 25 to 50% more at 1000 to 1200 .if more, overwater with solution until waste ec runoff is down 5o 1000 to 1200
- good luck
ibb.co
