#LOOK# yellowing leaves + red stems (pics)

yellowing leaves with red stems on those sick leaves.
right soil gro, 2weeks into flower.
half strength nutz(bloom)
plants were topped when 15''inch
older leaves started going yellow about a week into flower!!, new growth seems nice and healthy
take a look at the pics and gimme ur thaughts-what do u think? do they look healthy? once again thanx in advance!!

some more picz, input would be gr8-what do u think??

the stems are just hitting purple when ur leafs started turning yelow, id say small amount of nute burn , ur tips are slowly turnign from the tips too eh , what % of reccomended nutes are u using

only half strenght buddy!! wot do they look like appart from that?

They look to me like they might be a little hungry for some Mag/Cal. Don't go too crazy though or you'll lock out other nutrients.

Check your ph also and make sure that it's not getting locked out. If it's locked out and you add more it'll lock out more nutrients and just expand upon your problem.

thanx deffo not light using 400w hps

ph is smack on 6.5-6.7

that's pretty normal for when i flower... red stem could be P def. that one leaf will eventually fall off.. along with other yellowing ones

Shoot - they look good to me man - keep doin' wot you doin' bro!

thanx very much buddy , nice to have a compliment!! theyr pretty babies and budds everywere lol, bring it on!!

look up Mg deficiency-looks like displaying classic signs of intervenal chlrosis and tips burning. also look into Fe as well. I would really rule out nute burn as it generally works from the tips and back starting on older than newer fan leaves.

Your plant looks fine. What are the on/off temps in your grow room?

there is a def issue here. that yellowing with green viens will contiue to work it's way up the plant to the top. your girl is trying to tell you something. also, looking at those pics again, the conatiners are looking small for that size plant.

http://www.weedfarmer.com/cannabis/tables_guide.php

Awsome resource...

personaly after looking at the chart i think i should add some boost to my bloom and treat with MG also, any1 agree after looking at my pics??

I second the Mg

im having the exact same prob yellowing leaves some with brown in them and the red stems at first i thought it was bc of light bc im using cfl's but the bottom leaves are dieing and it is starting to spread to the upper parts of the plant and this is my biggest plant and im gonna start to flower on the 13 can you help me out

take a look at the link in the link below(superman) personaly if ur using nutes ide flush and cut bk on the neuts to a weeker dose, see how u go from there, looks like bit of neut burn but dont take my word for it as it could be a number of things, flushing is good once in a while anyway!! make sure u check that link out and try and match it up to ur symptoms, hope they get well soon!!

on a second look at ur pics it deffo looks like a classic case of neut burn, flush the soil with room temp water 3 times the amount of soil, like i said if ur using neuts cut back to 1/4 strenght of the recomended dose on the bottle!! good luck