What deficiency? (Pics)

Tuckatan

Tuckatan

Well-Known Member
I’m going all over the place with this plant!

I’ve given the last 2 feeds deionised water only, as since discovering my tap water is 447ppm, from the burn on the plants when I decided to add some nutes (gh micro/grow), I thought best to give clean water for a few feeds.

I’ve noticed new growth clawing, and the plant seems to be a very light green colour, though was previously a nice darker green.

A few leaves have some brown spots too, as in the pics.

Growing in pre-fertilised coco/peat with guano.
250w hps
16L fabric pot
Big old extractor, small intake, negative pressure, temp and humidity good, though have had issues previously.
Any ideas what she’s after? I keep running into one thing after the other! Lol.

Hotrodharley I’m sure you’ve got the answer!!

Thanks guys
 

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Tuckatan

Tuckatan

Well-Known Member
hotrodharley said:
Lighter green, bigger plants and a 250 watt might fit together. You fed micros and grow but no bloom?
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Sorry yea it had some bloom in there too!
A lot of the new growth is clawed, not sure if this is from the high levels of nutrients it had before, but the plant seems a lighter shade, and I’ve noticed some brown spots on the leaves, which I don’t think I’d seen before!
Last 2 feeds it’s had just water with a Ppm of 004. The run off from the latest feed was 570ppm and ph 6.5
 
hotrodharley

hotrodharley

Well-Known Member
Tuckatan said:
Sorry yea it had some bloom in there too!
A lot of the new growth is clawed, not sure if this is from the high levels of nutrients it had before, but the plant seems a lighter shade, and I’ve noticed some brown spots on the leaves, which I don’t think I’d seen before!
Last 2 feeds it’s had just water with a Ppm of 004. The run off from the latest feed was 570ppm and ph 6.5
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Advise you consider Lucas formula. Micros and Bloom only. Plus cal mag if you are not using tap. Clawing tells us nitrogen overdose among other stuff. Is there Iron listed on the Micros?
 
Tuckatan

Tuckatan

Well-Known Member
hotrodharley said:
Advise you consider Lucas formula. Micros and Bloom only. Plus cal mag if you are not using tap. Clawing tells us nitrogen overdose among other stuff. Is there Iron listed on the Micros?
Click to expand...
There’s no iron listed, I was using the hardwater flora micro, though I was using with tap water which the report shows has 13 ug/l iron. I have started with the de ionised water now though so no iron I assume! I think I did jack it up on N unintentionally when I introduced the nutes to the tap water. Would they cause it to be a light shade and get burn spots on the leaves?
 
hotrodharley

hotrodharley

Well-Known Member
Tuckatan said:
There’s no iron listed, I was using the hardwater flora micro, though I was using with tap water which the report shows has 13 ug/l iron. I have started with the de ionised water now though so no iron I assume! I think I did jack it up on N unintentionally when I introduced the nutes to the tap water. Would they cause it to be a light shade and get burn spots on the leaves?
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GH removed the Iron. The lightening green is possibly due to no iron, low sulfur despite nitrogen clawing.

Others have a lot of experience here.
 
hotrodharley

hotrodharley

Well-Known Member
Phosphorus in the feed can bind what little iron is available. Check for iron supplements . Usually powdered. Top dress before watering .
 
Tuckatan

Tuckatan

Well-Known Member
hotrodharley said:
GH removed the Iron. The lightening green is possibly due to no iron, low sulfur despite nitrogen clawing.

Others have a lot of experience here.
Click to expand...
Maybe I should mix some tap water with the RO water with some nutes every other feed and clean RO in between? So it gets some iron but I don’t cook it! I’m just spitballing really!
 
Tuckatan

Tuckatan

Well-Known Member
Dynamo626 said:
You guys are talented. I cant say anything for positive with that lighting in the pics
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Ha! I can get some normal lighting pics at lights on if it will help. Either way, I don’t know what the fuck I’m doing, just winging it! I guess Hotrodharley was more relying on my description of the symptoms... 4 hours until lights on and I’ll stick some normal lighting pics up!
 
Tuckatan

Tuckatan

Well-Known Member

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hotrodharley

hotrodharley

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Needs magnesium. Foliar spray Epsom salts. 1 tablespoon per gallon of water. Advise no more of your tap. Eliminate the "Grow" and use just Micros and Bloom. If it starts to lighten color down low after that then add a little nitrogen .
 
Tuckatan

Tuckatan

Well-Known Member
hotrodharley said:
Needs magnesium. Foliar spray Epsom salts. 1 tablespoon per gallon of water. Advise no more of your tap. Eliminate the "Grow" and use just Micros and Bloom. If it starts to lighten color down low after that then add a little nitrogen .
Click to expand...
Awesome, got some Epsom salts coming tomorrow. I’ve stopped with tap now so will use deionised + calmag + micro and bloom.

Should I give the micro and bloom every feed?
 
hotrodharley

hotrodharley

Well-Known Member
Tuckatan said:
Awesome, got some Epsom salts coming tomorrow. I’ve stopped with tap now so will use deionised + calmag + micro and bloom.

Should I give the micro and bloom every feed?
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I do. I also water once about every 3 feeds. Plain water. There's enough retained nutrients to use up.
 
Tuckatan

Tuckatan

Well-Known Member
hotrodharley said:
I do. I also water once about every 3 feeds. Plain water. There's enough retained nutrients to use up.
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Ahhh so feed x 3 then plain water x 1, I got you! Let’s hope these Epsom salts help it out. I never know if it’s doomed or not a massive deal to be honest, but I guess that’s why I keep bugging you guys lol
 
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