336x pro led

extremepsi

Well-Known Member
Received this light from a friend who used it in a warehouse op , yes it’s a few years old… been using it 3 weeks now for flower 12-12 … hardly any bud sights … never used led lights for anything other than veg …. Is the light the problem?
 
Received this light from a friend who used it in a warehouse op , yes it’s a few years old… been using it 3 weeks now for flower 12-12 … hardly any bud sights … never used led lights for anything other than veg …. Is the light the problem?
How old was the plant when you went 12 on 12 off with it? Changing lighting early will not make the plant skip veg.
 
All 6 plants were approx 4-5 weeks old before flipping them to 12-12 … only thing I haven’t add to the mix is Hydroplex …. Using botanicare nutes …
 

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Training for a flat canopy, though that light isn't really that much of a bargain, even for what you paid for it. Inefficient blurple and all.
 
With the plants in flower, the opportunity for the plants to "fill in" is long passed.

The two characteristics of those plants on the left are their significant height and the significant internodal space. That indicates that the plant didn't receive much light during veg. They grew tall and skinny, reaching for the light so they didn't have much energy to grow dense foliage.

Perhaps you can get some light on the plants on the right? The ones on the left won't be yielding much.

Compare that to the photo from @Hollatchaboy — dense inflorescence (leaves and stems) and the internodal space is much smaller which results in colas "stacking".

Another item of note is your EC/TDS. You're at almost EC 3.0. That's a lot. It might be good to figure out why you're at that level. I grow in hydro and never go over 1.6 EC. One factor might be the low water temp. At only 63°, you're in the range where temperature is inhibiting uptake of K (or P - I don't recall which one it is). At the temp, there's more DO in the water but at the expense of reducing nutrient uptake.
 
With the plants in flower, the opportunity for the plants to "fill in" is long passed.

The two characteristics of those plants on the left are their significant height and the significant internodal space. That indicates that the plant didn't receive much light during veg. They grew tall and skinny, reaching for the light so they didn't have much energy to grow dense foliage.

Perhaps you can get some light on the plants on the right? The ones on the left won't be yielding much.

Compare that to the photo from @Hollatchaboy — dense inflorescence (leaves and stems) and the internodal space is much smaller which results in colas "stacking".

Another item of note is your EC/TDS. You're at almost EC 3.0. That's a lot. It might be good to figure out why you're at that level. I grow in hydro and never go over 1.6 EC. One factor might be the low water temp. At only 63°, you're in the range where temperature is inhibiting uptake of K (or P - I don't recall which one it is). At the temp, there's more DO in the water but at the expense of reducing nutrient uptake.
I haven't gone over 1.2 this grow. Don't really see a reason to, if they're doing good at that level.

It's the P that starts getting harder to uptake at cooler temps.
 
I haven't gone over 1.2 this grow. Don't really see a reason to, if they're doing good at that level.

It's the P that starts getting harder to uptake at cooler temps.
1.2 - the fert companies must hate you! :-)

"It's the P that starts getting harder to uptake at cooler temps."
For some reason, I have a mental block about whether it's P or K but I've got it now - "When it gets that cold, it's hard to P!"
 
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