Leaves curling

[Nice-guy-eddy]

I'm 2 1/2 weeks into flowering and I've been noticing mostly on the top that my leaves are curling...ph is correct, I'm running 1340 ppm. I've attached some photos

 

[Southerner]

Is that a DWC setup? If so, what are the water temps been getting to at their highest?

 

[Merlin1147]

The far plant in the second pic is showing N toxicity.

 

[myke]

The N claw.

 

[xtsho]

1340 ppm? Hanna or Truncheon? Either scale it's more than you need.

 

[Nice-guy-eddy]

Is that a DWC setup? If so, what are the water temps been getting to at their highest?

It's a ebb n flow setup...water temp at 72 and room temp as high as 80 degrees

 

[Nice-guy-eddy]

1340 ppm? Hanna or Truncheon? Either scale it's more than you need.

I'm using general hydroponics flora duo part a and b. I'm using ro water. I went full strength...I'm going to dump the resevoir and go half strength nutes....I dont like the nutes I'm using...I think there is too much nitrogen in them for bloom.

 

[Nice-guy-eddy]

The far plant in the second pic is showing N toxicity.

That's a different strain than the others...I ran that one the last run at 700 was the highest ppm reading and it still showed nitrogen toxicity

 

[xtsho]

I'm using general hydroponics flora duo part a and b. I'm using ro water. I went full strength...I'm going to dump the resevoir and go half strength nutes....I dont like the nutes I'm using...I think there is too much nitrogen in them for bloom.

I think you'll be fine half strength. It's not the nutrients it's the amount. Always cut what they say to feed in half and add more if you need to. Most nutrient d=feeding charts have you using much more than needed.

 

[Nice-guy-eddy]

I think you'll be fine half strength. It's not the nutrients it's the amount. Always cut what they say to feed in half and add more if you need to. Most nutrient d=feeding charts have you using much more than needed.

I went half strength my last run and the buds were really airy and I didn't get much of a yield...I thought it was because I was only giving them half strength, but then realized I had harvested way too early (8 weeks). I'm wondering if I would of let them go longer if i would of had dense buds. So my thinking is that the light yield and airy buds had nothing to do with going half strength especially since I didn't see any defeciency

 

[bk78]

Cut your nutes in half as the others said. Remember it’ll get worse before it gets better, just roll with it and you should be good in a week and a half with healthy new growth.

 

[Southerner]

I'm using general hydroponics flora duo part a and b. I'm using ro water. I went full strength...I'm going to dump the resevoir and go half strength nutes....I dont like the nutes I'm using...I think there is too much nitrogen in them for bloom.

I've used FloraDuo quite a bit over the years, havent really met too many others who have, and I agree that its too much N in flower. I run in promix and usually feed 2/3 of the days with about 1.7 EC using the FloraDuo with just water or Floralicious on the 3rd day and didn't run into many issues at all. I'd suggest the GH trio as you can really control the amount of N going in a lot easier. With the trio, you can do whats called the Lucas Formula using just the Bloom and The micro at a 2:1 ratio. It will give you a proper 1-2-2 NPK that a lot of plants seem to like. I still use the Grow in the first couple weeks, but go to the Lucas after that.

I would be weary about your rez temps tho. 72 is high, not crazy high, but enough to start encountering root issues. Do the roots smell bad at all? Possible to get a picture of them? Idk, the other dudes could be right about it being a strong feed but ive literally never burnt a plant with FloraDuo and have gone much higher than their chart suggests. All strains are different though.

 

[Southerner]

I went half strength my last run and the buds were really airy and I didn't get much of a yield...I thought it was because I was only giving them half strength, but then realized I had harvested way too early (8 weeks). I'm wondering if I would of let them go longer if i would of had dense buds. So my thinking is that the light yield and airy buds had nothing to do with going half strength especially since I didn't see any defeciency

What light you using?

 

[Nice-guy-eddy]

What light you using?

I built (2) true 300 watt cob led lights (6) lights per unit each bulb is 50 watts. I know its plenty of light I'm just wondering if it's too much intensity they are 22 inches away from the tallest plant.

 

[Nice-guy-eddy]

I've used FloraDuo quite a bit over the years, havent really met too many others who have, and I agree that its too much N in flower. I run in promix and usually feed 2/3 of the days with about 1.7 EC using the FloraDuo with just water or Floralicious on the 3rd day and didn't run into many issues at all. I'd suggest the GH trio as you can really control the amount of N going in a lot easier. With the trio, you can do whats called the Lucas Formula using just the Bloom and The micro at a 2:1 ratio. It will give you a proper 1-2-2 NPK that a lot of plants seem to like. I still use the Grow in the first couple weeks, but go to the Lucas after that.

I would be weary about your rez temps tho. 72 is high, not crazy high, but enough to start encountering root issues. Do the roots smell bad at all? Possible to get a picture of them? Idk, the other dudes could be right about it being a strong feed but ive literally never burnt a plant with FloraDuo and have gone much higher than their chart suggests. All strains are different though.

Roots dont smell bad...I will take a pic and post here in a minute. They do have a slight tint to them but I think that's from floralicious staining.