Help Me Please! Brown patches =[

Hello! ive been looking like mad online about plant problems and havent really seen any pictures that look like mine. if someone could help me out, it would save me alot of grief.
I was using regular miracle grow and switched into fox farm as ive heard miracle grow doesnt do much for the plants. I just got my metal halide 1000 watt going as well. was using a 450 T-5...anyway...theres brown patches on 2 out of 8 i have going, 1 has some upward curling.

I havent got the chance to get additional nutes for the babies yet but dont want to add ANYTHING until i get this figured out....










any advice is appreciated thanks so much <3

Looks like a phosphorus deficiency

Keep the big halide at least 3 feet away.

idk how anyone can identify a problem by looking at one leaf. before you add anything plz post a CLEAR pic of the entire plant. the extra light isn't the problem. also, i took a grow from start to finish with just MG nutes alone so it isn't the brand of nutes you're using.

Maybe the P deficiency is from it being to cold at night...perhaps the root zone gets too cold at night and cant get to temp during the day or maybe the temp swing is doin it all just guesses. On the other side after a few weeks in FFOF the soil is usually out of food but usually an N deficiency is the first to show.

dannyboy602 said:

idk how anyone can identify a problem by looking at one leaf. before you add anything plz post a CLEAR pic of the entire plant. the extra light isn't the problem. also, i took a grow from start to finish with just MG nutes alone so it isn't the brand of nutes you're using.

Click to expand...

sorry about the picture quality...my phone was cold and having problems focusing...will try to get some better pics up...thank you for all your advice..dont think its a temp problem tho...as it stays pretty warm in that room...got some cal-mag to foliar feed it and see if it helps. our water ph is fine, havent gotten a chance to check the soil ph so thats my next step. <3

if its a P problem just grab some organic bone meal and some blood meal for N dude the only problem ive had during my grow other than her falling on her shit was a cal/mag bro and it did nothing cuz when i saw it i knew what it was and i wasent giving her none.bro read these post for these forums thats why theyre here not busting on you im just telling you so you wont have to do this you can just post pics of the good shit....gl with you plant

looks like the calmag issue i had.