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5 week but no buds! Meybe TMV ??

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  • Start date Start date Mar 5, 2025
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5 week but no buds! Meybe TMV ??

Blackandblack Mar 5, 2025 69 Replies 6,355 Views
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Blackandblack

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#1
Hi, I have problem with my ladies. It’s 5 week and they don’t have buds. I Think It’s TMV or magnesium deficiency? It’s my first time and I still learn. What should I do to make them feel better?
 

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Halloweed

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#2
What wattage light do you have and how far from the canopy? Are these autos or photos? Ph?

Still learning but the leaves are curling down. I believe that can be from light too close or heat stress. Looks a little nitrogen deficient to me but I'd wait for others to chime in.
 
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Blackandblack

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#3
Halloweed said:
What wattage light do you have and how far from the canopy? Are these autos or photos? Ph?

Still learning but the leaves are curling down. I believe that can be from light too close or heat stress. Looks a little nitrogen deficient to me but I'd wait for others to chime in.
Click to expand...
automatic. .
Now I changed the lamp lower to about 25 cm from the highest peak, because I was advised to have a minimum of 700 PPFD. LED lamp 730W.
 
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ArtfulCodger

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#4
It looks like too much everything to me. Just based on the pics, I'm guessing over-watering (leaf texture and thickness) and over-feeding (tip burn and clawing). They're light in color, so there's an imbalance between the light and the feeding and watering. What media are you growing in? How much and how often are you watering? How often, how much, and what are you feeding?
 
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Grownsince95

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#5
Definitely not a deficiency. They looked cooked. Can we see a pic of the light and better pics of the tops of the plants?

730w 25cm away sounds awfully close.

What's the temp and humidity?

What are you feeding them?
 
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#6
ArtfulCodger said:
It looks like too much everything to me. Just based on the pics, I'm guessing over-watering (leaf texture and thickness) and over-feeding (tip burn and clawing). They're light in color, so there's an imbalance between the light and the feeding and watering. What media are you growing in? How much and how often are you watering? How often, how much, and what are you feeding?
Click to expand...
Vegetatio stage to water every 3 days with 500ml of Canna nutrients: Terra Vega and Rhizotonic. Now I know that there was too little water and I watered every 2 days with 1000ml of Terra Flores. The last 3 waterings were just water.

I have plagron Lightmix soil, now ph it’s 6.

Everything in accordance with the Canna recommendations.
 
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Blackandblack

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#7
Grownsince95 said:
Definitely not a deficiency. They looked cooked. Can we see a pic of the light and better pics of the tops of the plants?

730w 25cm away sounds awfully close.

What's the temp and humidity?

What are you feeding them?
Click to expand...
in vegetation: lamp on is 29 degrees and 60/65% humidity; off is 19/20 degrees and 70% humidity. Now with the lamp on 29 degrees and humidity changed to 50/55% and when off it drops to 70%.
 

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#8
Grownsince95 said:
Definitely not a deficiency. They looked cooked. Can we see a pic of the light and better pics of the tops of the plants?

730w 25cm away sounds awfully close.

What's the temp and humidity?

What are you feeding them?
Click to expand...
What heigh is The best?
 
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Grownsince95

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#9
Can I see the light? The best height is the one that doesn't burn the plants.

29 is also on the hot side for flowering.
 
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Ninjadogma

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#10
How wet is your soil? Kinda looks like very unhappy roots compounded by improper light but it's TRYING to make you buds.
 
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ArtfulCodger

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#11
Blackandblack said:
Everything in accordance with the Canna recommendations.
Click to expand...
Over-watering is watering too frequently, as opposed to giving too much water at once. You're in an amended peat mix. Watering every two or even three days is too frequent. Your plants are showing signs of chronic over-watering. If they were mine, I would let the pots dry back until I saw straight-down droop in the lowers. Then I would water to saturation, and dry back until the pots were very light. I've never run Plagron Light Mix, but in similar amended peat mixes, correct watering has required between a quarter and a third of the media volume. Lots of ways to grow. That's just what has worked for me.
 
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Blackandblack

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#12
Grownsince95 said:
Definitely not a deficiency. They looked cooked. Can we see a pic of the light and better pics of the tops of the plants?

730w 25cm away sounds awfully close.

What's the temp and humidity?

What are you feeding them?
Click to expand...

Grownsince95 said:
Can I see the light? The best height is the one that doesn't burn the plants.

29 is also on the hot side for flowering.
Click to expand...
It’s this lamp:

Mars Hydro Smart Dimmable FC-E6500 730W Commercial LED Grow Light

Mars Hydro FC-E6500 with BridgeLux Diodes, 2.8 µmol/J PPE, Max 2.5g yield/wat. 730 Watt with smaller footprint for better crop quality.
marshydro.eu
 

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Ninjadogma

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#13
ArtfulCodger said:
Over-watering is watering too frequently, as opposed to giving too much water at once. You're in an amended peat mix. Watering every two or even three days is too frequent. Your plants are showing signs of chronic over-watering. If they were mine, I would let the pots dry back until I saw straight-down droop in the lowers. Then I would water to saturation, and dry back until the pots were very light. I've never run Plagron Light Mix, but in similar amended peat mixes, correct watering has required between a quarter and a third of the media volume. Lots of ways to grow. That's just what has worked for me.
Click to expand...

If you've let a plant grow a lot of shallow roots from improper watering, it's rough watching them suffer through a proper dry back. Better to not paint yourself into that corner in the first place.
 
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#14
Ninjadogma said:
How wet is your soil? Kinda looks like very unhappy roots compounded by improper light but it's TRYING to make you buds.
Click to expand...

Yesterday I watered 1000ml for each flower because the soil was dry. Now I don’t know what to do.
 
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Grownsince95

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#15
Nice light! I'm still leaning towards an environmental issue and not the roots because of the overall look of the plants.

Might be a CO2 issue. Do you feel like you have adequate airflow and ventilation? Is the air in the tent being exchanged frequently enough? If the air in the tent is stratified and hot they could be lacking enough CO2. It sinks to the ground if you don't mix the air enough.

How dialed in is your feeding now? Do you know the exact ppm/pH of what your giving it? Have you tested the runoff water?
 
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Ninjadogma

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#16
Blackandblack said:
Yesterday I watered 1000ml for each flower because the soil was dry. Now I don’t know what to do.
Click to expand...

Do you have a moisture meter you can poke around the soil at various depths? You can run into a situation where the top of the pot is bone dry and the bottom soaking wet. It's happened to me when I've gotten into the bad practice of giving smaller amounts of water more frequently with the misconception it would be a better soil environment. I don't know what is really happening when it does that but I've heard the accumulation of salts causes the pot to retain the moisture at the bottom, and on top of that the roots don't want to drink from there because it's too salty..
 
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#17
Ninjadogma said:
Do you have a moisture meter you can poke around the soil at various depths? You can run into a situation where the top of the pot is bone dry and the bottom soaking wet. It's happened to me when I've gotten into the bad practice of giving smaller amounts of water more frequently with the misconception it would be a better soil environment. I don't know what is really happening when it does that but I've heard the accumulation of salts causes the pot to retain the moisture at the bottom, and on top of that the roots don't want to drink from there because it's too salty..
Click to expand...
No, I don’t have it :( So I must buy this.
 
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Grownsince95

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#18
If it were my grow I would do a couple of things right away while I figured out what was really going on.

1. Dim the light 10-15%

2. Turn up the exhaust fan level and make sure the air moving fan is also blowing beneath the plants and not just over them.

3. Lower your day temp at least 5 degrees. The above steps may accomplish that but if not you will want a way to find some cooler air.
 
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Grownsince95

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#19
Blackandblack said:
Yesterday I watered 1000ml for each flower because the soil was dry. Now I don’t know what to do.
Click to expand...
How you know exactly how strong your feed level is? ppm/pH?
 
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Blackandblack

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#20
Grownsince95 said:
Nice light! I'm still leaning towards an environmental issue and not the roots because of the overall look of the plants.

Might be a CO2 issue. Do you feel like you have adequate airflow and ventilation? Is the air in the tent being exchanged frequently enough? If the air in the tent is stratified and hot they could be lacking enough CO2. It sinks to the ground if you don't mix the air enough.

How dialed in is your feeding now? Do you know the exact ppm/pH of what your giving it? Have you tested the runoff water?
Click to expand...
I have the air flow turned on all the time and two ventilation pipes that allow air exchange. In vegetative phase I used Terra Vega and Rhizotonic. Now I watering with Canna Terra Flores but the last waterings were just water beacuse someone said that I was overdoing it with nutries.
 
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Replies 69
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