4 weeks need help

these plants northern lights strain 4 weeks old haveing some yellowing of the leaves i am using cheap miracle grow waiting on nutes (tiger bloom)after i feed i flush they havent been in the dark since they sprouted they are stout smell strong they are under 624 w t5s can anyone help is it my nutes lumen burn or too much water

take it off the miracle grow and try jus more water and more light

I'm no pro but my guess is more light and a bigger pot from the looks of it.

how could four plants need more than 624 watts in a little box if you dont know ur not helping

They look like either they have gotten too much heat or you fed them too many nutes. I would flush and make sure that your plants are not too close to your lights. I would also make sure that you have enough ventilation.... throw a fan on them for a day or two just to be sure that its not your temps. Hope this helps

How big is that * pot * ?

rockwool right ? looks tiny... prob cuz of that aswell....... and, do u have holes in the bottom of that thing.. where do the roots go ?

cheers

Are you trying to grow plants in rockwool? Looks past over due for a transplant. Sorry for asking but why would you leave a plant that long in rockwool w/o putting it in a hydro setup? I wouldn't suggest just growing in straight rockwool the whole time your growing unless its going in a hydro setup which it obviously isn't lol. Lumen burn? thats a new one to me never heard of it Too much water can be a factor. The plant looks older then 4 weeks (maybe because of the MG dunno) on the 3rd pick where its brown at the bottom of the stem might be a problem. I never experienced it but kinda looks like stem rot. Anybody wanna confirm?