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Someone with tent off-gassing experience?

ultima

Member
I have been chasing a problem with my plants.
They started going yellow after I placed them in my tent.
All new growth is pure yellow.

They were transplanted from Jiffy to an Aeroflo 20 when they went in.
The tent is mylar inside and some kind of fabric on the outside, however it came with a white bottom liner .
I have now removed the liner from the tent. I only took it out two days ago , Im not sure if the effect should be immediate?

I'd love to hear from someone that has had off-gassing problems.
Could just the liner be causing this ?
If so does it need to be real hot in the tent or will it off-gass at any temperature?

Now that I have removed the liner , can i expect the plants to recover ?
If so , how long does it take?

Ec was 0.4 when started - raised in response-now at 1.4/896ppm Ph -6

Two strains , Jack flash -White widow.
2 jack´s seems to survive the tent , 1 is sick but the 3 widows are in big trouble.
A few smaller plants don't seem to grow at all!? 2 plants seem pretty healthy.


I can post the details of the grow( and have in a separate post) but mostly I'd like to know if my pictures look like off-gassing? And if not , then what on earth could it be?

Started out like this after 2 days in the tent.



Couple days later


.

I don't have a picture from today but it looks worse , all limp and yellow.
I could snap one if needed.

Here's one jack that went yellow at first but then slightly recovered- now it has these big rust spots and its spreading.

A small one.


Any assistance would be great , thanks.
 

ultima

Member
The tent is bought new , but could be old stock - don't know?
Its mylar inside but with a bottom white liner, that i took out-2 days ago.
Its happens to all plants but mind you all plants are in the aeroflo as well.
2 of them seemed to pull through with slight yellowing.
 

ultima

Member
Hi loko...

Yeah , I'm not experienced with hydro at all.
I did up the nutes in response to the yellowing, so that's not the cause.
Some of them have been so limp that the lowest leaves were sitting on the nutrient soaked hydroton- I think that might have caused some damage to the leaves.

I read the offgassing thread a few times hoping for some concrete info but its mostly a few guys bickering about manufacturers. Only a few pictures.
Again, the w-w seem to be more sensitive to whatever is going on then the Jacks? I also had a few plants that just wouldn't grow, they seem to have started growing now though?

Can the bottom liner cause offgassing?

Do my pics look like offgassing - yellow from the center?

If not off-gassing then what could possibly cause such a mess?

If the bottom liner is the cause and it has been removed , how soon should I see a recovery? Its been about 4 days and I think they are coming backs slightly. Having said that , I´m actually not sure of anything anymore , they might be getting worse and its just wishful thinking.

Also , I dont want to spend time waiting for them to recover from off-gassing while it might be something else.

I'm planning on moving a houseplant into the tent to verify that its toxic-free. Or i might cover it with the liner and see what happens.

Stumped...
 

loko17

Member
Hi again,

The bad thing about off gassing is that it mimics many deficiencies,
so until you take your plants out of it u want know for sure.
I would suggest to take few plants out and also put one inside a tent in soil to see what happens if u arent experienced in hydro. Good luck m8
 

ultima

Member
Thanks for your suggestions Loko , i'll have to put one in soil into the tent. The ones already in will stay.
If someone could please answer these questions.


Can the bottom liner cause offgassing?

Do my pics look like offgassing - yellow from the center?

If not off-gassing then what could possibly cause such a mess?
 

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