Sealed room plants yellowing

[iSMOKE.KUSH]

i just had my 2 shittiest harvests in years trying a "sealed room" for the first time. similar setup. i'm trying the venting @ night, more food approach like the others suggested. seems to be getting better. i also thought i had a pH problem. im about to give up on the sealed rooms. always used to get 2+ without them. now its like 1.5 per. shits lame

if its not broke...why fix it?

 

[budlover123]

you're growing in soil right? The roots need oxygen to survive, maybe they arenn't getting enough without the fresh air now and then.

 

[Fear]

That's kinda what it seems like it needs.

 

[fisher15]

Sealed room plants yellowing

Had the same issues after going sealed co2. Another vote to bump up the nutes!

 

[mg75]

try to stick a plant in organic soil or amended soilless (promix) in the room (and use only water). if it does not yellow, you know it is the medium/nutrients/PH which is causing the yellowing of the other plants. I always try to have 1 plant in organic soil just for kicks (beer cup size). it is a good way to A/B and rule out problems.

have you ever heard of CO2 shock? it's also possible you gave them too much too soon.

it's usually medium PH -----> water quality -----> PH -----> nutrient levels -----> air exchange (CO2 in your case)

also.... did you pull out a plant from its container and smell the roots? do you have root rot? fungus gnats? early indicator of root-rot and pythium is yellowing leaves. if you have pythium, then you might have over-watered or let the containers sit in standing water which restricted oxygen to the roots. if that is the case, try flushing the plants and using some H202. if root-rot is everywhere, i would nurse the plants and harvest them. after harvest, i would clean everything with bleach and start fresh with new clones, medium, and even pots.

 

[Fear]

hey i think i figured out the problem. She had her res. sitting in the room and was filling it while the room was inriched with Co2. I told her to add an airstone and to get the air pump out of the room to enrich the resevoir with some friggin oxygen and get some oxygen to those roots.

 

[muddywaters]

I'd try giving them some fresh air at night to, the plants don't need the co2 at night. i run a sealed tent and still give them some fresh air in the mid of the day, my monitor is set up to shut down when my fresh air intake comes on, then at night it shuts down and i give them fresh air.

hope things work out for you and your friend.

 

[youngtrader9689]

i am getting ready to put the ladys in a sealed room i usually dont give this strain more than 1200ppm in full flower what should i bring the ppm to with co2 ppm of 1350?