Newbie with YELLOW dying freinds help guys please!! Train wreck bluecheese,el nino

So to be honest this is my first grow bought the seeds ( pick n mix seeds ) over christmas vegged these's babys for 9 weeks then put them into my dr 150 tent under a 600w with a 8 inch fan, filter and a 8 inch inlet the temps are never to high allways around 75 with the humid at around 30. They are 11 ltr pots in PLAGRON royalty mix they get feed every watering every 3 days (playgron terra bloom) . But in the last week or so they have started getting problems the leaves are curled and the plants are very yellow with brown spots also the light shade seems to be coverd in well it looks like pollen off the plant is that normal ? this is my first grow so i have no idea please could some help ?? is it over? have i wasted 3 munths? what do you think ? ( they have 5 or 6 weeks left well hopefully ) a hope this makes sense i am quite highhhh please pictures ----> more pictures attached is this normal ? sorry about quality

Forgot to mention what do you think about my grow ano its a basic but its my first hopefully next time Super soil

No one no?

I'm not seeing it.

You need to post some close ups of the leaves on the plant. Did all those others fall off by themselves? They don't look too bad, colour-wise. How long have they been flowering for? Are you sure they aren't just nearly done, in which case it is natural for the older leaves to wilt off, as their stored goodness is used to power bud production.

It is possible, if you are still far from finishing, that you have salt build-up, with nute lock-out. You should flush them anyway with just pure water, as this is something which you should do during every grow. About 2-3 weeks into flowering you should rinse out the roots with clean water and then let them really dry out, so you know the roots have lots of oxygen and no salt ready for the hard work ahead of them building up your buds.

ok i will bite first off leave your leaves on!!!!!!!!!!!!!!second they wasn't really that bad little nitrogen deficiant but certainly not anything to start plucking them off.not sure but looks like you might have been running your light a little high during veg?also cut down on your veg time 4 wks is enough on an indoor grow of this size.you could get another 4 or 5 plants in there as well. as for your brown spots i'm not seeing them in the pics but that's either a heat issue or cal-mag deficiancy.But i think your biggest problem is overwatering and feeding,the soil needs to dry in order for the plant to process the nutrients,if your constantly keeping the plants soil moist you are locking out your nutrients.well hope this helps don't get discouraged and best thing you can do is leave them alone and let them do there thing.(also start doing a lot of reading on the forums)

Thanks for your help!!! sorry forgot to mention i took these leafs off so i could take a close picture but the only cam i have is webcam any ways.. About 2 weeks ago this problem started. last week all off the plants leafs were yellow ( every large leaf ) so i removed to be honest the light gets moved every few days carnt seem to get it in the perfect position ( i will read up about this ) 3 weeks into flowering, thanks for your help guys i will have a read up about your ideas. Just shows how much there is to learn