Very quick but important question.

ok,

To summarize the history its a 6 plant bubbler. i fucked up the ph early in, like first 5 days, then got it straightened out and have ph 5.8 most times. im about 15 days in now.

I'm def not over fertilizing now. If anything on light side. Routinely change water. sometimes in a gallon, sometimes more. I find this helpful to micro manage the ph. o
i have 400 mh on there, mylar36x36x64, air, i spray em..

its been 10 days no real growth. why? They been around an inch a while...??? some leaf growth, but real small. weakish.

have you checked the roots mate?

yes, that seems to be a positive side. In contrast to the rest, they seem to be developing atleast a bit better. In most cases poking out of rockwool into hydroton. Water clean. No signs of mold. Started giving them 7 to 8 hours of darkness. sometimes six. I think that helped the roots. keep asking!!

temps, reservoir and grow room?

guessing but im usually good...say 75 air. 65 water. water too high in know ive done a couple things to remedy that, however...humudity, like 35. sprayed 4x a day..

i would say your plant is putting most of its energy into forming its root system at the moment i wouldnt worry to much

thanks od lawim thinking that and it might insure a strong main stem...so im gonna chill

np man im kinda new to this and had same prob and was told same thing
basically she popped grew a lil and then didnt do nothing for about 2 weeks or so then she took off