Help with diagnosis!!! Please!!

[BaboKoyanggi]

Hello,
Strain: Nirvana Fem. Snow White
Soil: Pro-mix(used)/ TKS-2, Floraguard
Nutes: veg. 12-9-9
PH: H20= 7.0, H20+nutes+soil= 6.7
Cabinet grow: 34"wide x 24" deep x 60" tall
Lights: 55w CFL x 3
Exhaust: 1 huge bathroom fan, passive intake, doors cracked open
Temps: 80-83 degrees F.

Here's the story.
I germed the seeds in a shot glass of water, no problems.
Then I planted them into some used(4th grow with it) Pro-mix. At 4 weeks veg. 24/7 lights on, they all looked fine, good color, but were really short compared to my last grow at the same time. I figured it was a soil thing. So I bought some new soil (Can't get Pro-mix anymore here) called TKS-2, made by Floraguard.
I did a drastic repot, by that I mean I took all the old soil off the roots and put them into the new TKS-2 and gave them 1 liter of nutes.
6 days later my plants look like hell. The crown ( top of plants ) looks good, color, and reaching up, hell it looks happy. The bottom half of the plants are a completely story. The leaves started turning yellow from the outside edges, working slowly inward, the veins of the leaves are the last to go. Kind of tiger striping.
I am really hoping it's a stress thing. I was not gentile with the soil replacement. If it's just the stress from the re-pot then I think it will clear up.
What do you guys think. My plan of action right at the moment is to wait and see.

 

[Sammet]

I'm no expert. So I'm gonna say Mg deficiency due to the tiger striping. I'd give them some epsom salts.

This is just advice, so hopefully you'll get some more replies and someone with a bit more experience can either confirm or deny it Good luck!

 

[gladysvjubb]

Nutrient Burn

Nutrient Burn

They are OD'd on nutes. Back off and use distilled water only. They'll grow thru it. I wouldn't feed them anything.

 

[KABBAGE]

At this stage in the plants life it needs little to no nutrients to grow. Do as mentioned, ease off the nutes, feed plain water with B1 added and they'll bounce back quicker... Using recycled soil, did you amend it before potting?

 

[Scientist]

No way that is nutrient burn! Looks more like mag def. mainly, with other problems probably due to a pH problem. I dunno about the TKS-2, it looks really peaty which can alter pH signifigantly.

 

[Scientist]

i dunno what 12-9-9 means either...get some liquid nutes if that isn't, ie fox farms or PBP or something like that and water them down real good with a mild dose of nutrient water.

 

[MTF-Sandman]

Mag def and your plant is showing a little PH spotting. Check the runoff after the pot is thoroughly saturated - I think you'll find that it's low.

Next transplant, you need to add some perlite as well...

What are you using to measure the PH? Are you measuring the PPM/EC - if so, what is it (going in and runoff)? At a bare minimum, at least give us the brand of nutes and how much your using...

 

[VanGrow]

i would think they are shocked......and or stressed IMO ....so they are gonna show alot of defs as the plants work through it...and they will recover....IMO the roots are gonna need to readjust to a new enviornment, microbes and shit in the soil....im sure the new soil was a different ph even if only a small difference...ive done radical transplants and that was the result....follow the above advice from MTF and let them bounce back.....just my 2 cents.......
Good luck


VAN

 

[Blackmelo]

I can understand that people are saying this is a magnesium deficiency however babokoya said that a week ago his plants were looking fine.
Those plants are looking pretty bad and it is unlikely that a magnesium deficiency suddenly crept up and did that kind of damage in one week.
That kind of damage is only caused by a nute burn in my opinion and in some of the pics it looks alot like that.

However, stripping all the soil from off your roots sounds like one of the dumbest things to do really and that could equally be the cause of the ill looking plants...

If I was you I would flush the soil incase they are suffering from nutrient burn and then hope for them to recover. Do not feed them till you see new green shoots growing. It will take your plants a long time to recover from such a drastic repot but hopefully they will.

 

[BaboKoyanggi]

Hello,
Well one week later the plants are doing much better. The yellowing started 3 days after the soil replacement and lasted for 3 days.
I waited 11 days to water. I wanted the roots to spread out and look for water. The root masses were severely damaged during the soil replacement. They were unable to provide the needed nutes for the growing plants. The plants turned to their only source of available food, themselves.

After 11 days of waiting, I gave the pots 1 liter of water and veg. nutes (12-9-9). The plants are now doing their thing-- Growing. All look very happy now.

Thanks for all the comments, its good to know I am not alone.

What have I learned? Three things.
#1. Don't use old soil!!!!!!!!!!
#2. If you got to replace the soil (see #1) don't try and get rid of all the old soil off the roots.
#3. These plants are very hardy and can take a lot of abuse and still bounce back.
Hope they don't herm!!!!!






Happy plants again
Peace to all

 

[Sammet]

Wow babo! you sure they're the same plants? great recovery mate, I'm glad they're doing much better. Here's to a trouble free (rest of your) grow

Good luck!