found a problem i havent seen before and need some help to diagnose this one!

alright im about a month into vegging and just a day ago these brown spots started to appear on a few of my plants leaves. its nothing like the burns ive researched so im coming to you guys(or girls if there any that reply to this) for a little help on diagnosing and helping me with this problem. only the 2nd real problem ive had with these plants and im hoping to get this resolved so i can start to flower in about a week. but i dont want to start that till my girls are back in perfect condition. thanks for all your guys help! your all awesome

Are they being fed if so how much n how often?

yes but they are only getting half dosage because they seemed to have plenty of nutes with just that. and thats every other watering

bump

anyone else think they can help diagnose this?

To me it looks asthough they need a little more Nitrogen in them , also you may have a PH issue going on ,,, What is your ph and whats your nutes , Npk of nutes

turns out they were simply rootbound lol
ya i took those pics to a grow shop i know that will actually discuss marijuana and as soon as i told him he could see it was rootbound. sure enough when i transplanted they had roots covering the sides
thanks to those of you who tried to help though