4 weeks into flowering. Plant is wilting/growing yellow

Alright boys i have 3 strains in a DWS system. 2 of them are doing just fine but one of them is growing weaker by the day. I would rather not lose it if i can help it so any advice will help.


It's about 3 feet tall. under 250watt MH bulb (i know, rookie mistake bought wrong lighting system) i've put up 3x soft white cfls to assist in the flowering though, providing the right spectrum

I can't imagine it being a nute problem because the other 2 are doing extremely well. It's not a heat problem the room is well ventilated.

It can't be overwatering it's a DWS system...

I'm thinking it may be because the roots have grown so tall they've wrapped up around the bubble stones so maybe its being over oxygenated?

My other theory is that maybe i need to flush the medium of excess salt build up that could be dehydrating the plant.

Any ideas?

I would post pics but lack a camera

Different strains need different levels of nutrients. You can't feed them all the same, that particular plant is asking for nitrogen/more fert in general.

If you don't have them using seperate resevoirs you have a serious problem because correcting the nutes for the hungry one can overfert the others.

sounds like i have a seriously problem then. its one reservoir. If i changed to distilled water and flushed out the whole system would that solve the problem? granted it would be 2-3 weeks too early...

No way it would just make the plant sicker if you flushed it. Way way sicker. It's already starving.
(I think)

You should find a way to post a picture including the light and the whole grow to see if something else is wrong. Maybe it's not close enough to the light but from the description it sounds more like nutes.
Borrow a friends cell phone many have cameras built in, and use that to post a pic.

I think it was suffocating. One of the bubble stones had been detached of its air tube and the air tube was just pumping madddd amounts of oxygen to the plants roots. i've since fixed the problem but it may be late, the top half of the plant is fully yellow and limp

It can never have too many bubbles only too few.

in that case maybe the opposite is the problem. balls. the plant is pretty much dead by now. If i were to harvest it semi-flowered would the small yield stilll smoke?

Yes but it will be weaker and not taste as good as it should and maybe not burn as well too without a proper flush. Just stick it in a bucket of clean water with no bubbles then and give a few days with light on it and it'll have it's flush. It will be dead because of no bubbles, but who cares you just wanted to flush it.