sick plant, yellowing leaves

[itsagirl]

So is this a N deficiency or something else??? the tips of the leaves are burnt as well so do i still add an N rich fert??? also does this plant looked streched to anyone? i feel like the bottom branches might be streched a little.

[TIPSTRIPS]

its hard to tell mate but they certainly dont look good, what size pots are you using and what nutes, are they in flower and if they are roughtly how long? these are just some of the many of things it could be but id say for sure there nute burnt bad, However the leaves normally do that in the last few weeks of budding as its effectively dying and taking all of the stored energy out of them leaves but looking at your pics they dont look like there in flowering although if they were id say a week or two max. When growing outdoors if using nutes id buy seperate bottles of NPK or indoors if using soil for the simple fact that it could be one of the other nutes causing the problem and if your using normall nutrients your still adding a mix of all three whitch could be deadly for the plant/s and in my eyes a waste of money and a headache in the last few weeks with salt and excess nutrient build up, unless your leaching the soil once a fortnight. id personally buy a shit up soil like allmix from plagron or something like terra proffessional plus which you will not have to feed at all in the first few weeks and as soon as flowering comes just buy a organic boost and bloom from biobizz which will last for months
hope this helps

[itsagirl]

She just started flowering on the 7th of aug. As for ferts I'm using fox farm big bud. The pot is just a 5 gallon bucket. The leaves were all droopy from a lack of water they perked right up after some good watering I just don't know what to do about the yellow leaves. It started with just a few at the bottom but it's working it's way up the entire plant now.