YELLOW veins

[plumsmooth]

Seems like every time I solve one problem another appears. I just graduated to 13 Gallon Reservoirs for my RDWC with lots of air. Now i am trying to figure out what I am doing differently to have caused this.

The good news is My Purple Punch buds are incredible despite this Overall Vein Yellow phenomenon. That said, the research is not there i can get no good answers to this. Lots of people might go the diagnostic deficiency route, I think it must be excess of some sort.

I am compiling a list of things I have done different. My 2-3 week budding plant is doing it too. I including an array of pictures in different progressive stages of development of this. I have been looking at the new growth throughout (tips at top) but never see tell-tale signs of over-fertilization...

However now looking at the pictures I am seeing possibly some classic over fert? However the younger growth has NOT this typical Over Feeding edges! IS it possible this is some other kind of excess -- too many Bennies? Maybe not change my new larger Reservoir often enough. I worried about leeching plastic... I also thought they didn't like the frozen water bottles.

When it started i was experimenting using Store Bought Ice to make ice water cooling top offs! I thought maybe a contaminant in the Ice like Salt? I did run a little hot over 1500 PPM but a lot of that was accumulation I only was topping around 800 but honestly didn't change the reservoir for almost 3-4 weeks maybe. The highest drift I had was around 1800 I think but I would always bring it down with no more than 900 top offs...

Thanks very much for help considering this issue! It is crazy the Literature practically doesn't cover this Veinal Chlorosis! One mention was Contamination from Fungicide Pesticide etc...

 

[Kushash]

Seems like every time I solve one problem another appears. I just graduated to 13 Gallon Reservoirs for my RDWC with lots of air. Now i am trying to figure out what I am doing differently to have caused this.

The good news is My Purple Punch buds are incredible despite this Overall Vein Yellow phenomenon. That said, the research is not there i can get no good answers to this. Lots of people might go the diagnostic deficiency route, I think it must be excess of some sort.

I am compiling a list of things I have done different. My 2-3 week budding plant is doing it too. I including an array of pictures in different progressive stages of development of this. I have been looking at the new growth throughout (tips at top) but never see tell-tale signs of over-fertilization...

However now looking at the pictures I am seeing possibly some classic over fert? However the younger growth has NOT this typical Over Feeding edges! IS it possible this is some other kind of excess -- too many Bennies? Maybe not change my new larger Reservoir often enough. I worried about leeching plastic... I also thought they didn't like the frozen water bottles.

When it started i was experimenting using Store Bought Ice to make ice water cooling top offs! I thought maybe a contaminant in the Ice like Salt? I did run a little hot over 1500 PPM but a lot of that was accumulation I only was topping around 800 but honestly didn't change the reservoir for almost 3-4 weeks maybe. The highest drift I had was around 1800 I think but I would always bring it down with no more than 900 top offs...

Thanks very much for help considering this issue! It is crazy the Literature practically doesn't cover this Veinal Chlorosis! One mention was Contamination from Fungicide Pesticide etc...
View attachment 5152157View attachment 5152158View attachment 5152162

This might help.

 

[Hollatchaboy]

Top 2 pics, I don't see any burnt tips, indicating overfeeding, but the bottom one does.

 

[Rurumo]

Try running a much lower EC and changing the nutrients on a more frequent, regular basis.

 

[plumsmooth]

Can overfeeding maybe manifest in Yellowing Veins before burnt tips? Or maybe that is a build up of something else -- like an excess of one nutrient building up in an un-changed Rez? I still am suspect of the store bought ice water move which I was using at the beginning of this next round also, which is now at 2.5-3 weeks...

Thanks for the replies! Regarding that Chart, thanks for that too! Which brings me to the truth. (I will add more pictures later)

My plants feed at a rate of about 700-750 During Flowering -- but sometimes up to1300 even 1400 in Late Veg if my LED is not dimmed.

As soon as I flip the draw down almost halves. (1/3 less light?) That said, because I have run an undersized reservoir for so long I got in the habit of changing out around 1000-1100PPM, letting it drift to like 1300-1500 Max, then topping with 600 and then topping at that level until reservoir change within 3 days. I have gone up to 1800 before without consequence, so why now this?

That was in my 2.5 Gallon Power Grower which has now been modified to a 13 Gallon reservoir which is much more of a pain to change. So I got lazy. And maybe now that I have 5 Times the Res I should go ahead and try feeding them what they actually drink, which is about 700-750 max... The problem was I starting getting deficiency mainly Potassium right at the start of Flowering. I guess they literally suck up all the nutrients in that 2/5 gallon reservoir and by the time I top up they are already getting behind -- instead of staying ahead by giving the root systems which are not also bigger -- a much bigger bath to draw from...

 

[Hollatchaboy]

Can overfeeding maybe manifest in Yellowing Veins before burnt tips? Or maybe that is a build up of something else -- like an excess of one nutrient building up in an un-changed Rez? I still am suspect of the store bought ice water move which I was using at the beginning of this next round also, which is now at 2.5-3 weeks...

Thanks for the replies! Regarding that Chart, thanks for that too! Which brings me to the truth. (I will add more pictures later)

My plants feed at a rate of about 700-750 During Flowering -- but sometimes up to1300 even 1400 in Late Veg if my LED is not dimmed.

As soon as I flip the draw down almost halves. (1/3 less light?) That said, because I have run an undersized reservoir for so long I got in the habit of changing out around 1000-1100PPM, letting it drift to like 1300-1500 Max, then topping with 600 and then topping at that level until reservoir change within 3 days. I have gone up to 1800 before without consequence, so why now this?

That was in my 2.5 Gallon Power Grower which has now been modified to a 13 Gallon reservoir which is much more of a pain to change. So I got lazy. And maybe now that I have 5 Times the Res I should go ahead and try feeding them what they actually drink, which is about 700-750 max... The problem was I starting getting deficiency mainly Potassium right at the start of Flowering. I guess they literally suck up all the nutrients in that 2/5 gallon reservoir and by the time I top up they are already getting behind -- instead of staying ahead by giving the root systems which are not also bigger -- a much bigger bath to draw from...

I believe it manifests in the leaf tips first. It's the furthest point and it starts to buildup in the tips, causing burn.

 

[plumsmooth]

By the way, this is starting from the Larger Older Fan leaves and working up which is good since most of those leaves can be defoliated although I defoliate less with Purple Punch because of its profile.

IT starts as chlorotic spots along the veins. Tomorrow I am going to change out the reservoir to a 700 PPM. BTW I got my Plants Advanced Nutrients as a treat. I generally top off with Jacks depending on my Mood $$$.

I also run massive Bennies I will share my List Later. I even feed them with MycoChum...

Reverse Osmosis Water here about 5-6 ppm starting. Temperatures range from about 70-75 -- unless I go Frozen Water Bottle -- then I hit 67-68 and then rise...

I wondered if the Glue holding the Water Bottle Stickers was irritating? 74-75 is generally the maximum I allow with my new systems...

I have a couple of PRO CO2 Buckets hanging around. I wondered if something in their Emitting was irritating?

But I have constant Exhaust. And many say those don't so anything anyway... Maybe the Plants don't like the yeast smell...

 

[Hollatchaboy]

By the way, this is starting from the Larger Older Fan leaves and working up which is good since most of those leaves can be defoliated although I defoliate less with Purple Punch because of its profile.

IT starts as chlorotic spots along the veins. Tomorrow I am going to change out the reservoir to a 700 PPM. BTW I got my Plants Advanced Nutrients as a treat. I generally top off with Jacks depending on my Mood $$$.

I also run massive Bennies I will share my List Later. I even feed them with MycoChum...

Reverse Osmosis Water here about 5-6 ppm starting. Temperatures range from about 70-75 -- unless I go Frozen Water Bottle -- then I hit 67-68 and then rise...

I wondered if the Glue holding the Water Bottle Stickers was irritating? 74-75 is generally the maximum I allow with my new systems...

I have a couple of PRO CO2 Buckets hanging around. I wondered if something in their Emitting was irritating?

But I have constant Exhaust. And many say those don't so anything anyway... Maybe the Plants don't like the yeast smell...

What's the roots look like?

 

[plumsmooth]

The other strange thing is none of this happened to my Golosa Strain running in the same system also at fairly higher PPM's but not as high as the PP. I can not remember if I ever treated the Golosa (delicious seeds) Top-0ff with Store Bought Ice Water either...

 

[plumsmooth]

What's the roots look like?

Roots look great thanks to consistent massive Benny Inoculation.
My roots at the 50 Days about to be harvested Purple Punch has some browning dying roots but I assume that is normal at that age? I will take a picture of the roots through my access door of Rez...

 

[RIS]

If you're more into pictures then this is the easiest to use.

Plant Doctor - Diagnose Your Cannabis Plants! | Grow Weed Easy

Use our cannabis growing problem pictures and interactive plant doctor tool to quickly diagnose your sick marijuana plants! Click the pictures below to learn about a marijuana problem, deficiency or symptom & get the solution! Still having trouble? Consult our 5-Step Remedy to 99% of Cannabis...

www.growweedeasy.com

PH Fluctuations maybe.

 

[plumsmooth]

I thought of something else: For a while I have topped off pouring water straight through the large Inner Bucket of this type of RDWC system WaterFarm/Power Grower.

GH actually called this a Top Drip System. But when I switched to the Homemade Larger Tote reservoir I now use one of the access doors on either end of the reservoir instead of pouring through the Inner Bucket.

I have started to do this again though also. The inner bucket on this system holds a lot of root mass and rocks and maybe a build up in there is happening that used to, and needs to get flushed through... Even the evaporation at the top drip Plumbing over time may create a build up of some sort...

 

[Kassiopeija]

Overfeeding can lead to a lockout thus a deficiency. It depends on your mix and what ratio's the individual nutrition ions have to each other. Find the sweetspot in veg then don't change all that much in flower. Everytime you do a crude change the roots first need to adapt until they can work correctly again that's why scientific studies use 1 recipe from sprout to harvest.

 

[plumsmooth]

I forgot to mention after switching to the larger reservoir my PH has been so good I can not even believe it. It went from going up instantly to gradually going down (high e.c.). The instant up PH to 7+ I believe was a microbe I may have been dealing with and another story all together..

If you're more into pictures then this is the easiest to use.

Plant Doctor - Diagnose Your Cannabis Plants! | Grow Weed Easy

Use our cannabis growing problem pictures and interactive plant doctor tool to quickly diagnose your sick marijuana plants! Click the pictures below to learn about a marijuana problem, deficiency or symptom & get the solution! Still having trouble? Consult our 5-Step Remedy to 99% of Cannabis...

www.growweedeasy.com

PH Fluctuations maybe.

 

[plumsmooth]

If you're more into pictures then this is the easiest to use.

Plant Doctor - Diagnose Your Cannabis Plants! | Grow Weed Easy

Use our cannabis growing problem pictures and interactive plant doctor tool to quickly diagnose your sick marijuana plants! Click the pictures below to learn about a marijuana problem, deficiency or symptom & get the solution! Still having trouble? Consult our 5-Step Remedy to 99% of Cannabis...

www.growweedeasy.com

PH Fluctuations maybe.

I'd be shocked if Yellow Veins are on/in there...

 

[gwarf]

I don't know if this helps but I had yellowing veins in my seedlings a while ago, maybe my photos and data can help you diagnose your issue?

Early signs of yellowing veins, dying leaves

Hi all, This is my first hydro (DWC) grow and my plants are showing early problems that I can't quite figure out. I've grown some cannabis in the past but its been in soil and outdoors. Very early into this grow (about 7 days in) I started noticing yellowing in the leaf veins and the leaves...

rollitup.org

In my case it was almost certainly caused by a nutrient overdose - after flushing with distilled water the symptoms were mitigated, but the plants were permanently growth stunted and never recovered.

I sympathize with you on the lack of information about this symptom. It's really not well documented and doesn't match any nutrient toxicity diagram I've ever seen.