Need help

trying to find out what is wrong been looking every where to find this def or whats going on heres some pics

Anyone else thinking nute burn on yellow? Those rusty spots are some kind of deficiency if I remember correctly..

Those are educated guesses at best.

Ph, Nitro burn, or genetics ???

good flush n maybe a treatment of h202 and you on ya way

do you mist them and put them under the lights again? kinda looks like burns to me

I just got stuff like that on my seedlings at 2 weeks from waiting too long to give nutes.

what kind of water are you using/..R/O?..tap? well water?

if its R/O..it very well could be a Cal/Mag deficiency.

i had some rust spots on the first set of leaves..then i started using Cal/Mag,and now they look great!

I would try cal-mag the one thats tacoing is too close to the light. and the white powder is powdery mildew don't spray plants under hid lights it burns a spot in it like a magnifying glass. wipe the powder mildew off with your fingers if it comes off that's what it is.

okay i use distilled water already change res did the h202 add calmax to the water and i use dutch master grow one

I don't know it looks like nut burn to me but hard to tell