Yellowing/ Necroptic spots, healthy veins

[Squire5683]

Hey all just a quick question. The lower leaves on my vegging(3weeks into veg) plant are yellowing, and one or two of these have necroptic spots. Im using GH Nutes only the three part. Ebb&Flow Buckets with Hydroton.. 15mins every 4hrs watering. Lights on 24hrs 3000W over 6 plants. The same system is controlling my fresh clones into system in other room, and they are still too tiny to see any problems. These 6 plants started doing this about two weeks ago.

PH 5.9 EC 1.6 PPM 1010
Temp 78, Rez temp 75 Humidity low, maybe 30%

I added some Cal/Mag last week and that didnt help.

Any clues would be appreciated

 

[Squire5683]

Few more pics

 

[1969bubba]

I don`t know what strain that is or how much g-m-b you are using but this might be helpfull especially if that is a OG http://www.*********.com/forums/f90/og-kush-lucas-formula-veg-8635/

 

[Squire5683]

What is that? Nothig there.... These plants are Bubba Kush And 500ml-250ml-250ml GMB 50 Gall Rez

 

[1969bubba]

oh that didn`t work kinda new to posting sry :well no offense to anyone using 1 part micro 2 parts bloom for vegg but you will not get the nitrogen and micronutrients needed to get through veg... the plants look like they always want something cuz they do they want and need more nitrogen.. in flower i switch it to 1 part micro 2 parts bloom then about half way through i drop the micro to almost nothing as the calmag has nitrogen in it already. so it will keep the plants green through flowering with causeing foxtails. Thats written by Swerve from_Cali Connection.

 

[1969bubba]

yup i worked it to what the ogs want.. 0-grow 2-micro 1-bloom but in place of grow i put calmag for veg

 

[Squire5683]

I just go by the GH nute calculator.... Id love to switch to something more modern, im just afraid to switch. Ive got tons of GH GMB Is there an easier way with these?

 

[Squire5683]

Any ideas on my issues?

 

[el dub]

I'd give em a shot of cal/mag.

lw

 

[el dub]

Looks like they may have a P deficiency as well.

lw

 

[Tr33]

Wrong, That is not nutes, it's Root Aphids.

straight up dude you have the devil bug.
Your problem started about day 20-30
you have a false Ca/Mg issue

I bet you have a few fliers in the room you think are Fungus Gnats.
nope they are the dreaded RA.

This takes time to cure, get yourself some Bayer Tree and Shrub and root drench at 7ml/gal in your res.

go read the Root Aphid thread.

 

[Squire5683]

No not root aphids.... Im bug free... Checked for that already.... Just looked at my plants this morning and theyre getting worse

 

[Squire5683]

I havent had any success... Still yellowing on lower leaves. Could this be nute deficiency? Im just letting them Veg for now... Maybe 4 weeks in Veg. Id like to flip to flower, but afraid to.

Tap PPM 30
Current PPM 1150
Current EC 1.6

Heres the meter I use: http://cgi.ebay.com/TriMeter-pH-PPM...836?pt=LH_DefaultDomain_0&hash=item35a57a6604

 

[hydr1]

Looks to me like root bound...that's a big plant for that tiny container..I know its ebb and grow...but the symptoms and looks are there. I wouldn't be vegging for more than a couple weeks in a container that small..how big are those buckets?

 

[HUGE]

Raise you buckets 1" taller than your controller. Your roots are growing out the bottom of the top pot and are sitting in the stagnant water in the bottom bucket. Trust me. I have had this more times than you can count. Lift out the top pot and I bet it smells like a dead body. Then run some physan 20 to kill the disease then fresh res with 1ml per 10 gal bleach.

 

[Squire5683]

HYDR1, HUGE.... Sounds like it might fit my symptoms.... Ill post some pics of plant sizes and root pics.... My roots DO smell, but theyre white. Is this correct? I have to order the Physian 20, anything household thatll work for now? Im usually 3-5 days out on shipping. And the bleach... Just regular old Clorox? I run a 50 gall rez, usually 40-45gall full. Thanks a million.

 

[Squire5683]

Some current pics.... Biggest plant is 27" Tall from top of pot, white roots below pots. I guess i need to raise the pots?

Sorry Lights are on.... I ordered some new Cal/Mag, Clearex, and Physian 20 today... I have white stains on my hydroton... How do I know if I need Clearex?

 

[joe fresh]

white stains on hydroton would indicate salt building up on the hydroton.....just my 2c

 

[HUGE]

Now what exactly do they smell like. Moldy socks? Or a rotting corpse? Root rot stench will make you flinch. If that's the smell get the physan. You could just use like 2ml per gal till the physan gets here. If it's not that stinky it might be salt lock. Either run plain water with bleach till the physan/cleared gets there.

 

[danks]

gh has alot of salts salts brings down ph ph locks out cal mag and other nutes. also alt of people try nitrogen and say its a nitrogen deficiency right away because all the books say so but if you look at some veg booster like grotek veg booster its 8 -30 -0 or green up its a 1-3.5-0. wich leds me to believe that nitrogen isnt the only nutrients that makes leaves nice and green. i would suggest ph of 6.1 for hydro for now with cal mag fulvic acid to help uptake and foliar feed some p. feed something equal parts like micro and bloom no grow so that the npk is about a 5-5-5 at 800 ppm ph 6.1 so the cal mag get uptaken