4th wk flowering yellow/ purple leaves?

[NorCal]

hey all, I ve been noticing some of my leaves turning yellow and gradually now purple, some are just showing purple on top of the green (they didnt turn yellow)
im running ogk and purple urkle
the ogks are the ones changing the most

im running fox farm ocean forest w/ about 40% perlite
i use the bio bizz line of organic nutes @ about 1/2 - 3/4 strength
fish mix
alg a mic
top max
bio bloom
fox farm big bloom
earth juiice catalyst
hygrozyme
molasses
and some ivory bio soap
and i just started to add house and gardens top booster

i use straight tap water and just this week i strated to notice the change in color, its more present w/ the ogk's but other thsn the occasional few leaves exhibiting these symptoms everthing else looks nice and green.

the only conclusion i can come to would be that either the hng top booster isnt quite compatible w/ the bio bizz (causing lockout maybe?) or because of the fact that the bio bizz line is so mild in the n-p-k ratios that i havent been feeding em enough, what do you guys think?
i wouldnt mind if i was in my sixth week but i just wanna make sure theyre geting fed to their fullest potential before they go.....

BTW i reently bumped up my co2 to 1500 ppms and now a couple leaves (not many) look like they are getting a lil burnt on the tips/ edges? any ideas on that?

 

[Cannapits]

you sure it's not cooler temps...here is a couple shots from an OG I run...she turns around 4 weeks with cool weather...best of luck

 

[NorCal]

nope, my room hovers at about 86-89 running co2
maybe the difference in day/nighttime temps though? @ night itll hit about 66

those plants look dope!!!

 

[Norcal Crypt]

I use a lot of the same amendments in my soil grow and use to have early yellowing issues as well. I know that Fox farms already has a ph adjuster in it but its not enough. Get some dolemite lime and you will never have yellowing issues again and at the same time you will take care of any cal/mg needs for your plants. Only negative thing about this is that it is a bit harder to tell when your plant is done because the fans stay nice and green. Peace Nor

 

[bluntman 420]

zinc deffiency?

 

[Silverhaze]

hey guys

Maybe it´s the strain?think it´s possible?
If not i´ll post here a defeciency schedule,maybe it could help ya..

Silverhaze

 

[Cannapits]

Uh I bet it's the 20-23 degree difference in temps...got some pics

 

[highbrid]

Ive had similar reactions with the yellowing with fox farms always 3-4th week flowering. Ive added lime to the soil but i guess after the transplant into a bigger pot it needs more ......for some reason i think the soil (ocean forest) sucks up lots of cal/and mag. Ive grown with gh (hydro), big bloom and bat, big bloom and earth juice and a few others, and still i get the yellowing. Im gonna try bonticares calmag for the next run and see what happens... speaking of additives please some one tell me more about GRAVITY AND PURPLE MAX.... thanks guys.

 

[Philly Green]

You should slow down with the nutes. There are way too many variables to make a positive evaluation, when using so many additives. A little info about the strain and lighting/air circulation would be helpful, but I think you probably are overfeeding. Also, if you are using a lot of additives, I would be careful using straight tap without allowing it to sit for at least 24hrs.
If you have the extra cash, buy a couple gallons of distilled water and use only this for the next 1-2 waterings. Then you should be at the stage where you want to really boost the phosphorus, so you should stick with the fox farm big bloom and molasses and possibly some fish mix if you see any signs of nirtogen deficiency.

 

[Cannapits]

how about pics ...everything else is a guess

 

[NorCal]

pix pix pix....

pix pix pix....

so i just figured out how to post, hope all work....
first the room/closet

now all opened up....

 

[NorCal]

so what do you guys think?
should i just toss it all and start over? LOL
thanks for the replies fellas hopefully we can get this thing diagnosed....