multi-symptoms not sure wat to do...

Ok I have a 3x3 Blue Cheese plant that is 5 weeks into flowering. In general it doesnt look bad but I have sum things that worry me. It has multiple burnt tips n on sum fan leaves its getting lighter green blotches with rust colored spots n a lot of the stems r light-dark reddish purple color. Thr fan leaves have the darkest stems. Its under 300w of CFLs. Fox Farm ocean garden soil with big bloom and grow big. Although ive only given it Grow Big once at week 4 at 1/4 strengh . nutes everyother water. Any ideas? Ill post pics asap. Thanks guys

Dont know about the reddish stems as I also see them in my plants but they finish just fine.
Rusty spots here and there could be Calcium def.
Pics will tell the story.

Im on mobile n I dnt know how to put up pics with mobile without the app

i was growing a dwc 5gal, That for some reason the reddish color from the nutrients were on the bottom of the stem. I cut the nutrients back alittle bit and gave it alot of fresh water and it cleared up in about a week or 2

Whltever it is its started on the upper fan leafs n now its spreading down and im getting more n more burnt tips n little orange spots on the leaves. I really need help cuz its getting worse by the day. Ive been giving it water only for the last 2 watering 1 gal each time. Plant is in 8 gallon pot lol

looks like nute burn to me - flush with lots of fresh water (with the proper ph) with no nutes and see if that helps

Whltever it is its started on the upper fan leafs n now its spreading down and im getting more n more burnt tips n little orange spots on the leaves. I really need help cuz its getting worse by the day. Ive been giving it water only for the last 2 watering 1 gal each time. Plant is in 8 gap pot lol alister its 5 weeks in flower n has pretty large cola on it

haul it to the bathtub and run 24 gallons of ph corrected water through it - ive had to do it myself a few times

Fuck lol I dnt have a ph meter or ph down... only up. I can already tell u my water is about .8 that I use for watering which I know is high but..
Yah lol. It winter stress the plant to take it from the lights in fliwering

newest picture of a bad leaf.... wtf is that lol