Help Needed Plants yellowing

hi my plants have started yellowing and i wanted to know what u guys think the problem is as i have no idea there turning a yellowy brown colour

how old.. and are you feeding it nutes?

no nutes about 3 and a half weeks old

whats your water sched

once a week every monday

did the soil have nutes in it ?
Looks like nute burn

looks like nute burn to me, prob soil nutes

korvette1977 said:

did the soil have nutes in it ?
Looks like nute burn

Click to expand...

Definantly no nutes in soil

wow something is wrong if no nutes and they look like this. are the lights too close? crappy pics but almost looks like an mg deficiency-try a light feeding with epsom salts.

that soil is too hot m8 definitely keep it on plain water for a while till it recovers will prob be stunted for a while

3 weeks old, i would start giving them some nutes bro, start small like 10% then work your way up depending how they look, also make sure you have holes in the bottom of the pots. once you start giving them nutes your going to see a dramatic change and growth.