ive got a solution called formulex which is to level out the ph in rockwool when soaking for seedlings.
could i use the formulex to flush the female plants i have left and try to steady the soil?
all my plants started yellowing leaves at the bottom about 3 weeks into veg

heres pics of them,
second pic is the males that got the chop earlier today
first pic is the females left in the grow space.
more space for them nows gotta be good