curling leaves

[crisscross]

I have a few odd looking leaves. The color is variegated and some leaves have 'crooked' leaflets.

Based on charts found online and reading posts that maxibloom does not contain enough mg, I picked up some calmag plus from botanicare. I flushed with 1/2 ro and 1/2 tap for 48 hours, then changed the res again, and added cal mag. this sent my ec to 1.5 which scared me so I have been adding 1/2 tap and 1/2 ro since for addbacks. ec is now at 1.1.

My question is: what is causing the curling leaves? in the pictures you can't really see the variegated coloring but I'm sure they are related.


Albino Rhino x Big Bud
Seed
12 weeks from seed
Flower, 2.5 weeks in
DWC bucket
hydroton
69-74
maxibloom by general hydroponics, cal mag (recently)
ph from 5.2 to 6.1 sometimes. Recently wants to stay around 5.5
my equipment is calibrated, my last nutrient change was Tuesday after I flushed for 2 days because of the way my plant looked.
400w hps and the light is about 3-5" away from the canopy. My fan keeps everything cool.
My RH is 10%, there is a fan angled away from the plant so the plant receives minor, deflected air
I have hard water but I am using 1/2 tap that has been allowed to have the chlorine evaporate and 1/2 ro
the plant was cloned about 2 weeks ago
I have not used any pest chemicals except for a small amount of h2o2 because of a reservoir temperature problem that got out of hand a few months ago
I inspected the plants this morning with a microscope and no pests to be found.




thank you

 

[Legalize This]

it looks like you have a couple of problems. one is a certain nutrient deficiency that can be solved with 56 grams of Epson salt per 1 gallon of water. that will solve the downward "claw" of leaves.

 

[mushhead]

it looks like you have a couple of problems. one is a certain nutrient deficiency that can be solved with 56 grams of Epson salt per 1 gallon of water. that will solve the downward "claw" of leaves.

56 grams? That is two ounces. Per gallon? I would think it would be closer to 1 tablespoon per gallon.

 

[crisscross]

maybe he meant 5-6 grams. doesn't cal mag cover fill the void where Epsom salts fill in?

should I use calmag and epsom?

 

[analogue]

If your 400w light is really only 3 inches away, that is your problem.

IMO.

Doesn't matter what the temperature is at that distance.

 

[Hydro-Soil]

I have a few odd looking leaves. The color is variegated and some leaves have 'crooked' leaflets.

Based on charts found online and reading posts that maxibloom does not contain enough mg, I picked up some calmag plus from botanicare.

I've been trying to fix this but people keep posting incorrect information.

1. Except for a few rare phenos... Maxibloom has plenty of Mag. If you NEED mag... use garden grade epsom salts. Even drugstore epsom is cheaper and better than Cal/Mag

2. "Hanging around 5.5" You need a full pH swing, constantly. DWC should go from 5.2 up to 6.0 and then be adjusted back to 5.2 (preferably with nutes and not all pH down)

3. Cal/Mag has extra calcium and nitrogen in it. You're half tap-water already and don't need the calcium. You're in flower and don't need the nitrogen (Unless you like stretchier, stemmier bud?)

4. As was already stated 3-5" is too close, regardless of air temps. Try to up the light distance a bit..... especially with such low RH


Sorry that all you have to go from are people with the wrong information. Like I said, trying to fix that.


10% is reaaaaally low RH. No way you can boost that, even by only 10%?


Stay Safe!

 

[crisscross]

thanks hydro soil. I'm going to attempt raising my RH right now. I live in the Phoenix area which is a desert so yeah, it's difficult to raise humidity around here.

I am doing another res change right now and I will try out the epsom salts to see if that helps out and avoid the calmag.

 

[FullyMeltedDome]

Raise RH and your lights Bro,lol.That seems way close,but if its not burning them then yer good to go.I also think if someone doesnt 100% know what there talking about they kinda shouldnt say a thing,imo.Good Luck Bro.Peace and Stay Safe,DancesWithWeed

 

[Hydro-Soil]

You shouldn't need more than a gram of epsom per gallon. That's really not much at all.

Try running straight nutes, with the light backed off, for a while before adding the epsom. Chances are you don't need it at all.

Humidity can be tough. Perlite in a tub with a little water does well. Wet rag in front of a fan that has it's end dipped in a tray of water so it wicks. Might be more ideas floating around the board.

All else fails... find a humidifier. They're pretty cheap at thrift stores.

Stay Safe!

p.s. I agree with you crisscross!

 

[Hydro-Soil]

LOL I was neg repped for pointing out that Maxibloom doesn't need epsom? LOL

And by someone not even participating in the thread. LOL

Gotta love the crowd that hangs out on the internet.


Stay Safe!

 

[crisscross]

I got the humidity up to 50% with tons of open containers in the tent lol.

I backed the light up about 6-8"

I haven't added epsom yet but I still have curling leaves.

 

[Hoover_lungz]

maybe he meant 5-6 grams. doesn't cal mag cover fill the void where Epsom salts fill in?

should I use calmag and epsom?

dont use 56grams or 5-5gram of epsoms or you will make more problems.


I can see that you are into flowering, so i would advise that you flush your plants with cannazym for 2-3 days then put them back on a slight lighter feed with a bit of rhyzontonic.

i wouldnt bother using epsoms or cal mag now as your plants are into flowering and will not repair any damaged leaf and all the growth is going towards bud and not the leafs.


Just remember when you go into flowering after week 2 you should stop feeding cal mag and drop you Nitrogen down and start feeding higher amounts of P/K for exreme bud growth.

 

[TheGreenReaper]

I concur w/ Hydro-soil on all factors both environmental and nutewise..as I use GH MB as well...it only works in full strength...if you less then you get weird deficiencies based upon the marginal decrease in the different nutrients...use a scale and weigh out @ 7grams a gallon.

Give the plant a few days to respond with the new more humid environment. Best wishes on your harvest.

 

[crisscross]

Things are more humid. I lowered the nute solution. Things have gotten worse. Look at these photos. It's the same plant as the plant in the original photo.


The leaves are 'burning' with a ton of spots and in other areas the leaves are 1/2 yellow! I'm a sad panda. any advice would be appreciated

 

[crisscross]

developments

developments

oops sorry

 

[Hydro-Soil]

Keep your humidity below 40-50% or you're looking at possible mold issues.

You lowered the nute solution? You should still be at around 7grams of maxibloom per gallon.

The light colored streaks on the leaves look like bleaching from being too close to the light.

The spots look like the plants are beginning to eat themselves.... need more nutes.

You should still get fairly decent results... you're not screwing up too badly, should be proud of yourself.



Stay Safe!

 

[FullyMeltedDome]

LOL I was neg repped for pointing out that Maxibloom doesn't need epsom? LOL

And by someone not even participating in the thread. LOL

Gotta love the crowd that hangs out on the internet.


Stay Safe!

Yeah Bro,some youngsters here be givin out Neg Reps like crazy.I could say its a great day,and someone could be having a bad day so they neg rep ya,or someone could use Pure Blend and you say you like Foxx Farm and theyll hit ya with the Neg.Theres alot of youngsters on this site that just smoke bowls and have never grown a plant in there lives ,and stil have things to say about that which they know nothing of.If i Neg Rep ya(which i think ive only done once in almost 8 years),i leave a little message for ya too..Oh Yeah,and by the way,your correct Bro..Peace and Stay Safe,DancesWithWeed

 

[stihgnobevoli]

go back to your regular strength that you were using prior to starting this thread, the reason your leaves were curling like that is most likely because the humidity was too low and nothing else. those last pictures look like deficiencies or lockout from your ph being too low.

check your ph and continue like you had been doing. the leaves never uncurl just look and see to make sure more leaves aren't curling. as for epsom salts you shouldnt need it if you have cal/mag and MG is already in your nutes. but if you do. no more than 1-2 TEASPOON per gallon of water.

 

[Legalize This]

i meant 56 grams. my plant has severe claw from too rich soil. 56 grams in 1 gallon worked perfect. that is help straight from a guy named Jorge Cervantes (hope i got that right). i trust him more than anyone else. 56 grams in a gallon you can barely taste. its not as much as u think. it also fixed my plant so well that there is "no" claw whatsoever.

 

[Legalize This]

the claw will straighten out with epsom. its proven. ph at 5 if its soil. once the water is in the soil, it goes up to 5.5 and 6. the soil will up the ph is what i noticed. i ph lower than normal, and 56 grams epsom if your not flowering. people dont agree with this but, i just went through exactly that. im not a pro, but i do know this works. my leaves are still somewhat spotty. Pure Fox Farm Ocean Forest isnt really a good idea. i mixed half and half organic/Ocean Forest, and it still burns. im going to try 4:1 next time. i had better luck with straight yard dirt.