Light brown spots on fan leaves

Hi. I have a plant that's somewhere in its 5th week, the first week of flowering. I just started noticing some light brown spots on some of the fan leaves. The plant is a really short and dense plant. I don't mean short like it looks stunted, I mean the nodes are really close together. I've looked at some of the plant problem photos that I found somewhere else, it doesn't look too much like any of them. It's in a pretty small pot so maybe being root bound can cause this? I gave it a big last dose of veg ferts a few days after I switched to 12/12 so maybe too much nitrogen is locking out something else, is that possible? The ph of the soil is ok and I fed it its first flowering ferts a couple of days ago using Fox Farm tiger bloom and big bloom. I noticed the spots before I gave flowering ferts but after the last veg fert feeding.

need pics....could be many things

It's not the best picture but it's the best I can do. My camera's on the fritz and it took me like 20 minutes just to be able to get a pic.

I had to black out some stuff in the background so don't pay attention to that.

It looks like the first signs of spidermites, just get 2 fairly wet cloths or 2 sponges and put 1 at sponge at the topside of the leaf and one below and swipe backwards.

Or ye and look underneath the leaves you might see some, even if you dont still do what i said just to be sure.

heres a link to help you http://www.youtube.com/watch?v=Z34osq5tGnY skip to 7mins and 20 secs and it shows what the problem youhave is and how to get rid of it, and i was right they are the first signs of spidermites.

get some pyrethin...
WT

that couuld be a lot of things broham. could mean you need some magnesium. if you use tap water i doubt its this because the water from your tap should have enough mg in it plus the nutes you use probably have a little too.

could mean you have spidermites (thats easy to check just look underneath the leaves). i dont know about the mites though because only that one leaf is being super manhandled. if you do have spidermites though might i recommend a hot shot no pest strip. it will take care of all of them easily, quickly, and without a mess. just hang it up and theyre gone within a couple days. on anothr note i feel like im always saying this haha. hot shot should pay me some royalties.

it could mean the radiant heat around your leaves is too much. are you using cfls around the bottom of your plant?

it could also mean you have a fluctuating pH, i bet due to a combination of possibly overferting combined with the salts fox farm leaves behind.

good luck!

ah!! using FF? well we had the same exact thing happen from over-fert, ph imbalance...got those specs all over the leaves....flushed and Ph down, and it went away...
WT

i learned the hard way too.....use FF nutes at the lowest recommended amount, and only every other feeding
WT