Uh Oh WTF is wrong with my plants?

[20am20]

Plants were perfectly healthy then bam, something weird is going on with them. Any idea this is my first grow!!! The Northern Lights which is the darker green one is perfectly ok. They all get fed the same amount from the start.

 

[Kushcookies13]

What week of flowering are they in?

 

[crisnpropa]

Soil looks a bit too wet. Hard to tell from the photos. Does the container have drainage holes?
Can you observe the roots?
Are the roots brown or white?

 

[20am20]

Hi thx for reply, no the soil is actually dry, I let it always dry out before adding water. Its dry down about an inch on all plants before watering. They just turned yellow for some reason except Northern Lights which has been maintained the same as all three plants. Now, I was following a chart based on the nutrients I was using and it seems to be half of what was called for. So im possibly going to go with a deficiency starting. I could very well be wrong though. I cant see the roots but there are plenty of small drain holes with bigger holes on bottom and sides at bottom too

 

[20am20]

Hi there, they are all 8 weeks old (in total) in a few days.

 

[Merkn4aSquirtn]

You getting decent drainage when you water?

 

[20am20]

Yep! It all runs off nicely after a few minutes. I water using 2L and about .5 litres runs off maybe a bit more.

 

[PadawanWarrior]

Not all plants eat the same amount. The yellow ones look hungry.

 

[20am20]

Ya I was thinking the same thing so I upped their nutrients to a new chart.. Purple stems are pretty solid on it as well. I did cut those big yellow leaves off and some of the smaller ones I hope that didn't do more damage.

 

[PadawanWarrior]

Ya I was thinking the same thing so I upped their nutrients to a new chart.. Purple stems are pretty solid on it as well. I did cut those big yellow leaves off and some of the smaller ones I hope that didn't do more damage.

Next time leave them on. The plant was using them, and was sucking out nutrients from them. Now they will have to steal it from other leaves until they get enough at the roots. And purple stems could mean a P deficiency.

 

[20am20]

Thx for the tip I will do that from now on. I was a little hesitant but the yellow leaves felt quite dry. all the other ones are ok.

 

[PadawanWarrior]

Thx for the tip I will do that from now on. I was a little hesitant but the yellow leaves felt quite dry. all the other ones are ok.

I'd try to get the deficiency in check before removing anything next time. Are you giving them some flower nutes?

 

[20am20]

Yes I use General Hydroponics Flora series. I use a blend of different amounts from the 3 bottles. Micro, Gro, and Bloom.

 

[20am20]

I was just thinking of something, would it be possible for these plants to get a sunburn? I move them from tent to outdoors every chance I get. Sometimes they go a few days without sun and just stay in tent.

 

[Gentlemencorpse]

I was just thinking of something, would it be possible for these plants to get a sunburn? I move them from tent to outdoors every chance I get. Sometimes they go a few days without sun and just stay in tent.

Careful doing that, good way to bring pests inside.

And yeah, plants can get light burn, but I don't think thats your issue. Light burn usually starts with the top leaves closest to the light source.