Leaves are Going Deep Purple Super Fast with Pics

These pics were taken 24hrs ago and it has gotten substantially worse since then.

They are Rockstar Bubble Kush and they are half way through week six of flower. 5 out of the 10 plants are exhibiting this. The other 5 are fine.

400watt
AN Sensi bloom, voodoo, bud candy
last feed was one week ago at 1200 ppm

and yes I know my buds are gay and small.

Looks yummy.

Is your grow room getting cold at night?

Dirtfree said:

Looks yummy.

Is your grow room getting cold at night?

Click to expand...

the low on my temp sensor consistently reads 66F. So i would say no. I searched and most people seem to agree that purple leaves indicate cold but I don't think so in this case. Also, if it was due to cold I would think all of the plants would exhibit this.
I'm just concerned about wether or not it is a feeding issue. I dont think a purple leaf can possibly be contributing to photosynthesis which also leads me to beleive they will eventually die?
Doesnt seem to be a whole lot of info about this out there.

Do you have red or purple stems ?

If so you may want to check your pH

could be genes bubba is a purp.,.,but 66 is low enuff to show the purp genes in sum plants and its not always a bad thing i dont see and problems with the leaf it lo0ks healthy but i could be overlo0ks sumthing so forward.,.,

Good genes + cooler temps = PURPLE
Nothing to worry about. If bud growth stops then consider a lockout/def.

wish I could get my tent to a low of 66 i think you are fine but one can never be to sure.... watch it closely hopefully it will ALL turn purple and you will have dankness...

maybe phosphorus def. i have strain thats fussy and colorful like yours and starts about 4wks from harvest and then gets more pronouced at last week. if its both strains you have then i would look at nutes temp ph and so on. also no one wants me to tune my fussy bitches they like color and so do i but, if i get better yield i think they would be happier

I am about half way through week six and have been seeing the same EXACT thing, with the purple leaves around the buds. I asked the guy I got the clones from if it was genetics or what and he said hes never seen this strain turn purple and that it was probably due to cool night temps... my room never gets below 60. I'm beginning to think it's the nutrients. I also use sensi bloom two part along with bud candy and carbo load. If the rest of your leaves are still healthy and green (some probably yellow) there's nothing to worry about. you should start your flush process in the next week or so over feeding isn't going to be an issue.

Coals said:

These pics were taken 24hrs ago and it has gotten substantially worse since then.

They are Rockstar Bubble Kush and they are half way through week six of flower. 5 out of the 10 plants are exhibiting this. The other 5 are fine.

400watt
AN Sensi bloom, voodoo, bud candy
last feed was one week ago at 1200 ppm

and yes I know my buds are gay and small.

Click to expand...

most of the stuff ive grown that puprpled did it in the late 5th week till finish....those are niceplants..nothing to sweat

I wouldn't like my leaves to purple like that, green is the only good colour for green leaves. Mabe too much ferts since the rest of the leaves look deep green or maybe ph or watering or sumthing.

Dammit, I am experiencing the same thing, deep purple leaves with a shifting gradient to yellow. I've heard some people say nitrogen deficiency, but I had just fed them some FloraNova Grow along with the FloraNova Bloom, Liquid KB, Floralicious, and MagiCal. They are in week 7. Some of the plants are turning purple yellow gradient, some near ythe buds. It doesn't look natural. I want to feed them but I'm not sure what's going wrong. I just flushed them with 15ml/gal of Clearex.