One of my mother plants started dropping pretty bad 2 days ago but I can't understand what is the problem...
The situation in this...
3 month old mother plant in dwc, this plant is in the same system from seed so the system is tested
the system consist in a 16 gallons plastic tank filled at half with res and a 3 watt aerator attached to a 60 cm porous tube to oxygen
Now these are symptoms of over/underwater, but all is as before, the day before yesterday when I saw the dropping of the plant I quickly flushed even if ph and ec was right, and added fresh water and nutrients
The ph was (like it is now) circa 5.5 and the ec was at 1.4, now after the flush i lowered it to 1.1
Also the roots are good, white / light brown because of the flora micro
Then being oxygenation ph and ec at normal values I checked the temperatures.
The room temperature is 70, the water temperature before the flush was 61, now i added a aquarium heater to bring it to 64.
RH in the room is at 65%
So
air pump - working
ph - 5.5 ok
ec - 1.1 ok
temp - 70f ok
wtemp - 64f ok
rh - 65% ok for vegetative state
leaves - nice green ok
I can't work this out, the plant until 3 day ago was perfect, now is close to be dead...
HYDROPONICS/Aero Ponics/Coco/Soiless/
How long has this problem been going on?
-3 days counting today
Are you growing in a PVC grow tent?
-it's a non brand tent, the material seems mylar
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
-DWC
What STRAIN are you growing?
-the church ghs
What was the establishing technique? (Were the seed or clone?)
-seed
What is the age of your plants?
-3 months
How tall are the plants?
-4 feets
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
-veg
What Technique are you using?
-topping
What substrate/medium are you using?(Hydroton, RockWool etc.)
-rockwool and expanded clay
What is the Water temperature?
-61 f before the flush
-64 now
What color are your roots? White? Brown? Are your roots slimy?
-white / light brown
What Nutrient's are you using?
-Ghe flora series 3 parts + epsom salts
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
-floramicro for fist, then epsom salts, floragro and florabloom at last
What is the TDS/EC/PPM you are using
-before the flush EC 1.4
-now 1.1
What is the pH of the "Tank"?
-5.5
How often are you testing your pH/PPM/EC/TDS?
-usually once a day someday once every two days
Are you sure your calibration is correct on your equipment?
-yes
When was your last feeding change? (ie. grow-bloom-micro-additional)
-never, I started at first with low EC, increasing it as the plants got bigger, always with a ratio of npk 3-2-1
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
-once every 3 weeks or once a month
What size bulb are you using?
-1x 600w MH with reflector
How old is the bulbs you are using?
-got it new 2 month ago
What is the distance to the canopy?
-40 inches, this is a mother plant, i take advantage of the nearby light
What is your RH Factor(Relative Humidity)?
-65% lights on
What is the canopy temperature?
-don't know
What is the Day/Night Temp? (Include flucutaion range)
-lights on 20~22 C° (72~79 F)
What is the current Air Flow? (cfm etc.)
ex 125mm 280 mc/h - 165 cfm
in 100mm 140 mc/h - 80 cfm
Tell us about your ventilation, intake exhaust and when its running and not running ?
exhaust is on 24h
intake is on with the lights, so 18h
ventilation is done with two fan a small one, 9 inches, and one big 17 inches
Is the fan blowing directly at plants?
-the smaller one yes, while the big one is pointed at the space between the lights and the plants
Is your water HARD or SOFT?
-I use 70% RO water + 30% very hard water (EC 1.0) from tap
If using RO,Distilled,mineral water, what is the ppm/EC/TDS without any additives?
-EC 0.05
Has plant been recently pruned, cloned off of or pinched
-i took some clones
Have any pest chemicals been used? If so, What and When?
-no
Are plant's infected with pest's
-I think not
The situation in this...
3 month old mother plant in dwc, this plant is in the same system from seed so the system is tested
![iLZw_13597.jpg](http://pic.kl1p.com/iLZw_13597.jpg)
![kUrc_13598.jpg](http://pic.kl1p.com/kUrc_13598.jpg)
the system consist in a 16 gallons plastic tank filled at half with res and a 3 watt aerator attached to a 60 cm porous tube to oxygen
Now these are symptoms of over/underwater, but all is as before, the day before yesterday when I saw the dropping of the plant I quickly flushed even if ph and ec was right, and added fresh water and nutrients
The ph was (like it is now) circa 5.5 and the ec was at 1.4, now after the flush i lowered it to 1.1
Also the roots are good, white / light brown because of the flora micro
Then being oxygenation ph and ec at normal values I checked the temperatures.
The room temperature is 70, the water temperature before the flush was 61, now i added a aquarium heater to bring it to 64.
RH in the room is at 65%
So
air pump - working
ph - 5.5 ok
ec - 1.1 ok
temp - 70f ok
wtemp - 64f ok
rh - 65% ok for vegetative state
leaves - nice green ok
I can't work this out, the plant until 3 day ago was perfect, now is close to be dead...
HYDROPONICS/Aero Ponics/Coco/Soiless/
How long has this problem been going on?
-3 days counting today
Are you growing in a PVC grow tent?
-it's a non brand tent, the material seems mylar
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
-DWC
What STRAIN are you growing?
-the church ghs
What was the establishing technique? (Were the seed or clone?)
-seed
What is the age of your plants?
-3 months
How tall are the plants?
-4 feets
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
-veg
What Technique are you using?
-topping
What substrate/medium are you using?(Hydroton, RockWool etc.)
-rockwool and expanded clay
What is the Water temperature?
-61 f before the flush
-64 now
What color are your roots? White? Brown? Are your roots slimy?
-white / light brown
What Nutrient's are you using?
-Ghe flora series 3 parts + epsom salts
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
-floramicro for fist, then epsom salts, floragro and florabloom at last
What is the TDS/EC/PPM you are using
-before the flush EC 1.4
-now 1.1
What is the pH of the "Tank"?
-5.5
How often are you testing your pH/PPM/EC/TDS?
-usually once a day someday once every two days
Are you sure your calibration is correct on your equipment?
-yes
When was your last feeding change? (ie. grow-bloom-micro-additional)
-never, I started at first with low EC, increasing it as the plants got bigger, always with a ratio of npk 3-2-1
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
-once every 3 weeks or once a month
What size bulb are you using?
-1x 600w MH with reflector
How old is the bulbs you are using?
-got it new 2 month ago
What is the distance to the canopy?
-40 inches, this is a mother plant, i take advantage of the nearby light
What is your RH Factor(Relative Humidity)?
-65% lights on
What is the canopy temperature?
-don't know
What is the Day/Night Temp? (Include flucutaion range)
-lights on 20~22 C° (72~79 F)
What is the current Air Flow? (cfm etc.)
ex 125mm 280 mc/h - 165 cfm
in 100mm 140 mc/h - 80 cfm
Tell us about your ventilation, intake exhaust and when its running and not running ?
exhaust is on 24h
intake is on with the lights, so 18h
ventilation is done with two fan a small one, 9 inches, and one big 17 inches
Is the fan blowing directly at plants?
-the smaller one yes, while the big one is pointed at the space between the lights and the plants
Is your water HARD or SOFT?
-I use 70% RO water + 30% very hard water (EC 1.0) from tap
If using RO,Distilled,mineral water, what is the ppm/EC/TDS without any additives?
-EC 0.05
Has plant been recently pruned, cloned off of or pinched
-i took some clones
Have any pest chemicals been used? If so, What and When?
-no
Are plant's infected with pest's
-I think not