Hello, first timer and i was wondring i had 3 26 watt cfls on 2 plants they stretched at the begening they grew very slow. now they have developed brown and yellow spots. i bout a new 400 watt HPS light with reflector with a converter. how far away should the lights be? there about 2 weeks. also what are good cheap nutrients, lil tight on money right now .sorrry but no picks, have no camera. any help would be great.

Soil or hydro? 400 watt bulb you should keep light as close to plants as you can get . what are your temps in your room? i read 12 inches. if the temps are kept cool. put you hand under your light if it burns your hand then raise it.
but i would keep around 12 inches from top of your plants. i cant tell what nutes. i dont know what your using. you have to go to the store to get nutes. right?. those guys know it all ask them. take it easy sorry no one else helped.
for the yellow leaves you have to make sure your ph is perfect. in the water and soil.

i am using soil, i think they are a lil sun burned so there are not as close to the lights as they should but i will move em up in a couple days. ya nutrients i will just ask someone at the store. but i started off with just worm caastings. can i get a ph tester at the garden storre like home depot. My temps are between 71-80 F. thanks man

one thing it could be I know because i had the same problem it could be fertilizers in your soil if you have some fertilizers its bad... and yah i was gonna say if you want your lights closer to your plants get a small fan(no bigger than a computer fan) and you can get your lamp closer to your plants... also I dunno if your using CO2 but if your not try to like talk to them or something(not really talk to them cause they just need the CO2) everyonce and a while when you figure you can. I have heard sugars also can be used as plant food, but i wouldnt use gatorade... I know it has electrolites, but plants cant grow on electrolites.

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Everything i say is made up of fictional events and should never be taken seriously. I do not partake in marijuana smoking nor do I grow.

Not sure, hopefully sunburn like you say but check here if you haven't already:
Guide for diagnosing plant problems
or in the growFAQ

I'd look for you but I need some goodluck with it!

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i have had this issue many times and i always narrow it down to nutrient diffec, unless i have been misting plants directly under a light that is too close...soil if picked in haste can be the cause of this i try to use a peralite massed soil with no nutes so that i know my soil is just soil and then i feed with the apropriate newts on my own so i know whats in there walmart soil is the devils dirt miricle grow can cause hot spots,super thrive can aswell,try a flush if you can and cut down on feedings for a bit and see if it improves...

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Ya im using miricale grow for seedlings or something like that. though before my 400 hps lights came in the lights were very close about 2 in. away now about 1.5 feet and used to spray them so that could be it. idk but thanks for all the good info.

Have a good Smoke!

Also will this permintitaly damage the plants?

No ,,,,, Flsuh em and dont use mirical grow again . shoot.

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i agree miricle grow isnt made for us use organics and always remember you want to put this into your body with the least amount of forienge chemicals