Twisted growth - Leaves look like throwing stars!

[Sweet_green]

This is the only plant out of my nine that really look like this. It's like one half of the leaf didn't form properly, causing the leaf to twist sideways. The new growth seems to be ok, but I'm not sure what is going on. They were stressed a couple times over the last month moving from their first 2 temporary homes to this final one. They've been stress free for a week now.

Plants are over a month old (from when seed sprouted) and I'm sure they are under size. But I figure they lost a couple weeks total recovering from transplant stress.

Nutes are Technaflora Boost and Grow, Thrive Alive Red, Sugar Daddy, Cal-Mag, Superthrive, a little bit of Rhizatonic, Pro-Tekt and SM-90.

My light is 400mh Digilux on a Lumatek ballast in a Radiant hood.

Air temps 72-74(22-24c) and Rez temps are 64-66.

Any ideas? Anything to worry about?

Thanks

 

[Crowmax]

how often do they get water?

from a quick view i would say it could be over watering. (leafs are droopy and growth is stunned)

EDIT: What's your Ph and Ec values? You feed with tap or Ro water?

 

[Sweet_green]

Hey thanks for the reply!

They are watered every 6hrs for about 13minutes. I use my tap water as it has the same EC as my RO unit, which is 30ms or 16.5ppm(.55 scale). So my tap water is pretty good I'd say, no? My nute strength has been raised slightly to 1.15ec(630ppm .55 scale)

I'm pretty good at maintaining proper pH...check it at least 2 times a day. But I'm finding after I set my pH to 5.5 before going to sleep, I'll find it around 6.2 when I wake up. Now that only means there is one feeding where things could go wrong, but I don't think it gets to 6.2 in time for that feeding, but who knows. I also don't think 6.2 is that too far out, although I like to keep it under 6.0 at the most.

 

[Stress_test]

Definitely looks like over watering.

Ph is likely changing because of temperature changing between checks.

Over 6 is for sure too high. Try maintaining a consistent water temp, and maybe water more frequently in shorter cycles. That should even out temps and ph.

I had a 45 gallon res once, with a submersible pump and 20 gals of solution, setup for aeroponics and found the same thing. When I first noticed that the temps would rise from pump heat, I had to increase my solution volume about 8 gal to balance out heat being generated by the pump.

 

[BlueberryLovr]

I've never seen overwatering to cause leaves to grow like boomerangs (on the horizontal plane). A few of my plants have displayed this type of growth before, but it is always localized to only one or two nodes of each affected plant. They're still healthy n kickin'.

Those plump droopy leaves on your photos, however, are signs of possible overwatering.

 

[driftersmokinjo]

I have had this deformation in the past and 1 now. The cause imho is form damage done when the shell comes off. When I have had this it has always been on a seedling that had trouble shedding it's shell. After a few nodes it is gone.

 

[Crowmax]

Sweet_green try make them thirsty a bit. The stems also look purple in some of the photo signs of overwater.
Try cutting the water cycle in half for a while. Like 5 minutes every 6 hours, see if the leafs start curling up, asking for more water.

This is an ebb&flow unit? Im not very familiar with hydroponics since its my first hydro grow.
I had similar problems like you. Started from seed and plant growth was slow and leafs was kinda droopy. I had my pump 15 minutes every 4 hours. Decided to cut it to 10 minutes every 4 hour and they really loved it. After the plants grew bigger and roots had taken over the pots i started to water more. Just check my grow thread if you want its posted there.

 

[w2008]

hi there, my experience is to pump water for 2 minutes every 3hrs, during veg, when the lights are on, and only once for 3 minutes in the middle of lights off, during flower this is dropped to every 2 hrs lights on and still once during middle of dark period, cheers

 

[abuldur]

Hi,

i'd say check your roots very thoroughly and look for springtails Onychiuridae order.

http://www.stevehopkin.co.uk/collembolagallery/

When they feed on live roots they first go for the small white hair and this seems to cause the side curving of the leaf on my plants.

peace

 

[Sweet_green]

Well I dunno, seems some of the new growth seems to still be doing it, and now the plant next to it seems to be showing the same thing(it might have been like this for a while, but I just noticed it on this plant).

I'm still adjusting pH to 5.5 before going to sleep, and still finding it around 6.0-6.2 when I wake up.

Anyways, here are pics taken today of the second plant showing weird growth

 

[Sweet_green]

And here is close up pics of that original plant. I took a good close up of one of the worst leaves, so you can see how half the leaf is shriveled up, causing the twist

...and a group shot taken today

 

[Aksala]

Some of those leaves look like they have severe mosaic virus or something.

Dunno if that's exactly what it is...and if it is...its some of the worst i've seen.

Do you use cal/mag? I only grow organic so I use pullverized lime and don't really have the problem but in hydro it could be different...

Again...since I don't grow hydro I could be completely wrong.

But check out some pics of the mosaic virus on MJ plants and it looks similiar.

 

[Sweet_green]

Well upon further reading, I have found out that Thrive Alive and Superthrive are very similar, and since I'm using both I might be over doing it. I've found people complaining of mutated growth from too much B-1 and hormones.

So I'm doing a rez change in the next couple days when I get my H202, and will cut out the Superthrive, and use less Thrive Alive and see how that goes.

 

[GoozMan]

You know, that kind of looks like my leaves did when they got too strong of a nutrient solution in my hydro setup.

 

[mdanzig]

Chlorine build up. Possibly.

 

[mdanzig]

I never see this problem. I use a super soil, and use organics to ammend soil. A two-step filter system for your water would good, and be sure to oxygenate your water for at least 24 hours.

 

[rutger]

Hey Sweet, take a look at this thread looks to me like it may answer your questions regarding your babies.

http://www.icmag.com/ic/showthread.php?t=177527

 

[MagicChef]

Is your tap water high in chlorine? Do you smoke CIGS in your grow area?

 

[MMJcali]

Yea I was gonna say, the plant in the center looks like it has the leaf-bent-sideways symptom from the mosaic virus. I've never grown in hydro though.

and they don't look that discolored so, probably just overwater...

 

[BlueGrassToker]

I think many of the answers here are correct. And they will all contribute to stress.
Stress can cause exactly what you are seeing. I have rooted some clones that got transplanted early on, and they took on a mutated leaf like yours until they straightened out with time. I already knew the line did not have that sort of mutation regular, and I knew it was caused by something environmental. It may have been the stress of an early transplant, or perhaps the soil was off...but it was definitely a stress of some sort causing the issue.

There are lines that hold deleterious mutations in their structure, and these are usually known for having such issues. And then there are those that actually do take on TMV. IMO TMV is something that I would suspect 99.9 percent of cannabis growers have never ever seen before. Even if they are convinced that is what is afflicting their plants, my bet is that it is for sure not TMV.