Water uptake is almost at zero.

[tomlaforest]

Here is my problem, question and stats.
Everything has gone textbook on this plant till it stopped drinking. It was taking 3/4 gallon every 3-4 days. Now it's going almost a week and it shows no sign of thirst and the soil shows (full) wet half way down on my meter. I've been using Rising Bloom organic fert and worm casting top dress. My PAR is right around 1000, leaf temp is around 73* Fahrenheit, I have a small tip burn happening but that is the only negative sign on the whole plant. My water coming out is at 6.7 and ppm is 1200.
The buds are maturing but not adding the bulk that I feel they should be adding at this point. She looks fine but the water uptake this is bugging the hell outta me!
This is day 31 of flower and I guess my looking for insight as to whether I should be concerned on anything. Thanks in advance for insight.

 

[hotrodharley]

Your temperature is too low for LED. Raise it to at least 80.

 

[Budzbuddha]

Just give it time … roots get waterlogged and growth can slow. Your watering habits should be based on plant not “ every 3-4 days “.

Allow a good dryback and then adjust watering accordingly. They look pretty good.

 

[ALPHA.GanjaGuy]

With what you wrote I thought temps but then you show a picture that shows 81.6 degrees?

What are your day and night temps?

It looks a lot like temps are dropping too low at night

 

[tomlaforest]

With what you wrote I thought temps but then you show a picture that shows 81.6 degrees?

What are your day and night temps?

It looks a lot like temps are dropping too low at night

The low temp gets down to the lower 70's and tops out around 83. The top leaf temps stay around low 70's.

 

[tomlaforest]

Just give it time … roots get waterlogged and growth can slow. Your watering habits should be based on plant not “ every 3-4 days “.

Allow a good dryback and then adjust watering accordingly. They look pretty good.

Patience grasshopper...lol
She looks great but I get a little apprehensive as things start to ramp up.

 

[tomlaforest]

Your temperature is too low for LED. Raise it to at least 80.

Raise to 80? Do you mean the plant temperature? My light is approximately 10" above the top and I'm running a PAR of around 1000, I think DLI is about 42.

 

[hotrodharley]

Raise to 80? Do you mean the plant temperature? My light is approximately 10" above the top and I'm running a PAR of around 1000, I think DLI is about 42.

Yes raise your temperature to at least 80. 85 is fine. But 70 is just not warm enough for LED

 

[tomlaforest]

Yes raise your temperature to at least 80. 85 is fine. But 70 is just not warm enough for LED

Cool, I'll adjust the outflow of air and see what happens.

 

[Modern Selections]

70's is fine for LED, you do not want your temps at 85. Bad advice from chronic bad advice giver.

Just let the plant dry some and try to increase air movement by putting a fan so it blows across the top of the soil.

 

[coreywebster]

How is the air temp 81 and the leaf surface temp 70?
One of those measurements has to be wrong

 

[ALPHA.GanjaGuy]

Here is where people get confused. I agree with @hotrodharley , You want 80+ running LEDS. Most manufacturers say something like;
"Flowering temperature is ideally at 84 - 85 °F. This will help keep leaf temps at the Cannabis-ideal 88 degrees when using our LED grow lights. Vegetative temperatures can range from 75°-90°. However, ideal vegetative growth will occur at 85 °F and 60-70% humidity." -- From Black Dog LED
"LED's emit no IR, so to achieve similar metabolic rates found in HID or greenhouse conditions at 78F air temp,LED growers need to run the room air temp at 83F-85F." -- CA Lighting

 

[Modern Selections]

Show me one manufacturer who can hand me a bud that kicks ass. Weed is getting worse because the basics are being ignored. If your room is that hot, your end product is not. Sorry but 85 is ridiculous.

Optimal growth for Cannabis is 72-77 lights on and 65-70 lights off. REGARDLESS of what light your using.

 

[ALPHA.GanjaGuy]

Optimal growth for Cannabis is 72-77 lights on and 65-70 lights off. REGARDLESS of what light your using.

with respect that is very narrow minded and not very accurate

 

[Modern Selections]

With respect, you will find out the hard way then. Best of luck to you.

 

[tomlaforest]

70's is fine for LED, you do not want your temps at 85. Bad advice from chronic bad advice giver.

Just let the plant dry some and try to increase air movement by putting a fan so it blows across the top of the soil.

Thanks bud and I'm doin exactly that. I'm keeping my humidity at 45% and a fan blowing 24/7
As I worked thru his advice I couldn't bring myself to raise the cabinet temperature that much. It's happy as hell with the current temperature range. I just don't understand how it can go 7-8 days with drinking up it's content of water. Other than that, she's a sticky and happy little girl and looking like she'll be very frosty

 

[Doug Dawson]

I would not really worry about it at this point. Plants not showing any signs of problems. Raising temps a bit would not hurt but still, plants look fine.

 

[tomlaforest]

How is the air temp 81 and the leaf surface temp 70?
One of those measurements has to be wrong

Good question and I would say it's because it is respiration happening. Same as our bodies don't take on ambient temperature. These are my current readings.

 

[coreywebster]

Good question and I would say it's because it is respiration happening. Same as our bodies don't take on ambient temperature. These are my current readings.

Those readings are more like what I'd expect to see.

Though you are using a black thermometer in direct light which probably throws off your air temp accuracy

 

[ALPHA.GanjaGuy]

Also most of those thermometers do suggest you be within a few inches of what you are checking. The further away the more likely you will get an incorrect reading but yours may be different and able to be further