Help need a diagnoses

[leatherware12]

these are 16 days old from seed under 24 hours of light
temps run 79 degrees in the day low 70s at night 50% humidity
they are all grown in a 10 gal aeroponic dwc
6 gallons of 5.0 ph water with a tsp. of dyna gro grow nutrients
no idea what these spots are on the first picture

and twisting leaves in this one

any info will be greatly appreciated

 

[wolfman68]

i'm no pro, but how much ru feeding her and how much when you do feed? hows ur ph?

 

[leatherware12]

theres 4 plants in one tub for 6 gallons they get 1 tsp od dynagro nutes then topped off every other day with 5.5 ph water then every other day topped off with 5.5 ph nutrient mixed at 1gal 1\2 tsp dyna gro grow nutes

 

[Dr FrankenKush]

you need to get the PH up the target is 6.2 to 6.8... 5.5 is 10x more acid than a PH of 6.5. A PH below 6.5 may cause a calcium deficiency , root tip burn and leaves could get fungus [ leaf spots]. straight outa indoor marijuana horticulture, Cervantes, clarke, and Rosenthal.... very goood reference source for I've gotta know now!!!! RO water is good solution..

 

[BWC BayArea]

Dr. Frankenkush is on point. enough said. + reps Dr. flush and ph ur nutes water to at least around 5.5-5.9 for hydro. Pitviper is the hydro guy I'd trust. I'm a soil man, but I do know that much of hydro.

 

[Zodiakgrower7]

He is growing using Aeroponics, isn't the PH level for Hydro and Aero between 5.5 and 5.8 instead of the soil which is supposed to be 6.5 and 6.8? Please correct me if I'm wrong.

 

[Dr FrankenKush]

True enough hydro should be about 5.5 to 5.9 a couple of 10ths won't be noticed but .7 is a big jump. My girls seem to be happy in the 5.8 to 6.2 range..

 

[leatherware12]

ok after keeping the ph at 6.0 for a few days and finally getting hold of some RO water heres some new pictures i believe the deficiency are a magnesium deficiency which locked out zinc so i foilar fed yesterday. these pictures are before the foilar feeding. also my ph is constantly rising about .5 a day is this normal??

 

[Flurple]

i have only just started a grow in aero but i have read a lot on using calmag, its a verry common deficiency. also the pH swing seems a little big but your plants might just be drinking more nutes. my pH jumps anywhere from .3 to .5 a day.

what is your res temp? i had a big pH swing when pythium set in and started to rot roots.

 

[leatherware12]

okwhat is calmag?? i am currently unaware of the real res temps i let the water heat till its about room temp

 

[BWC BayArea]

Cal/mag is a calcium and magnesium supplement that a lot of growers use to replace minerals stripped from reverse osmosis filters or generally not present ot lacking in soils and fertilizers. Read this>https://www.discount-hydro.com/productdisp.php?pid=133&navid=17 I really would like to encourage u to raise ur PH ASAP.

 

[leatherware12]

the ph has been adjusted to 6.0 with nutes. like i said it still rises daily about .5 for what reason i do not know

 

[BWC BayArea]

How's ur new growth looking? Nevermind, I c those are recent pics. Guess I'm outa suggestions. Let's see how they improve over the next few days. Twisted leaves are almost always a tell tale of PH problems. I just re-read ur 1st post. Y are u only adding a tsp of nutes to 6 gals of h20? That seems very watered down. Especially since ur nutes are already mixed and all u do is add them to the water.

 

[leatherware12]

heres an update after a day after 12\12 6gals RO with 3tsp of dyna gro bloom. ph swinging from 5.5 to 6.2.

 

[leatherware12]

figured i would add more pics.
pic of full setup is old and i dunno why its so dark i think i had the camera on the wrong settings

 

[Dr FrankenKush]

That looks better t0 me they look like they are strokin again how do they seem to you pictures can be deceiving...

 

[BWC BayArea]

Do my eyes deceive me? Looks like some we've made some improvement. Good work.

 

[leatherware12]

ya the pictures look alot better than than they do in person i figure out is what wrong with my plants one has brown spots all over and has folded up its affecting multiple leaveson 2 plants and another has yellowing new growth that is very small leaves that dont seem to grow much at all. i think its a zinc deficiency. you can see the pictures in my previous post and im goin to post more soon

 

[leatherware12]

notice the yellowing on the left leave, diagnosis plz and solution?

more curling leaves and odd growth

this one looks great but new growth is starting to show signs like the last picture

same problems

 

[Dr FrankenKush]

Zn deficiency is noted first as yellowing and necrosis of older leaf margins and tips then twisting, curled new growth. treat with FE-Zn-Mn supplement, folier feeding will speed up recovery. Somtimes it hard to show what the plant looks like in a photo, I can make a nice plant look lame and lame look OK.....Good Luck so us the GOOD in couple of days!!!