XIII
Member
Hey everyone, I have 3kw worth of plants that are beginning to develop problems! What I am experiencing appears to be a phosphorus deficiency, just like the pic from Stitch's thread.
Some of the plants. Affecting mostly top leaves on plants.
An average leaf halfway affected. Looks like a pic I've seen before, "phoshorus and potassium lockout ph related".
Average affected plant
In addition the leaves are canoeing upwards toward the light.
Coco
How long has this problem been going on? 7 days
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents) No
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...) Top feed drip 3x a day 30 seconds
What STRAIN are you growing? Honeybee
What was the establishing technique? (Were the seed or clone?) Clone
What is the age of your plants? 1 month veg
How long have they been in there mixture they are in now?(coco,soiless etc..) 3 weeks
How tall are the plants? 30" or so
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? Week 1 flower
What Technique are you using? Bushes
What substrate/medium are you using?(Hydroton, RockWool etc.) bagged bcuzz coco
What is the Water temperature? room
What color are your roots? White? Brown? Are your roots slimy? white
What Nutrient's are you using?(If growing soiless) gh flora series
How much of each nutrient are you using with how much water? 6 mL per gallon micro, 9 mL per gallon bloom.
How often are you feeding? (If using soiless) 3x a day
How often are you giving nutrients? (If using soiless) every watering
If flowering, when did you switch over to using Bloom nutrients? same formula
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) micro, bloom, ph'd
What is the TDS/EC/PPM you are using? PPM meter broken
What is the pH of the "Tank"? 5.7-6.1
Are you sure your calibration is correct on your equiptment? Calibrated with fresh solution often
When was your last watering? today
What is your water temps? room temp
When was your last feeding change? (ie. grow-bloom-micro-additional) Mix every few days
How often do you clean your system: example: Flush out water replace with clean water and nutrients? Every few days as necessary
What size bulb are you using? 1000w HPS
What is the distance to the canopy? 24"
What is your RH Factor(Relative Humidity)? 40*
What is the canopy temperature? Varies from 72-82
What is the Day/Night Temp? (Include flucutaion range) 77*
What is the current Air Flow? (cfm etc.) sealed room; oscillating fan
Tell us about your ventilation, intake exhaust and when its running and not running ? sealed room
Is the fan blowing directly at plants? no
Is your water HARD or SOFT? RO
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? RO
Are you using water from a water softener? No
Has plant been recently pruned, cloned off of or pinched No
Have any pest chemicals been used? If so, What and When? Azamax as a preventative measure 3 days ago
Are plant's infected with pest's No
This problem began about a week ago as canoeing. I (mis?)diagnosed this as 'praying for magnesium' and added epsom salts per h3ad's formula to the res at a rate of 1 tsp per 5 gallons nutrient solution.
I am wondering if the leaves canoeing could be a symptom of heat stress?
A few days later the canoeing was still there and I began to notice the edges of the leaves burning. They look very similar to the picture above for phosphorus deficiency. Is it possible to mistake heat damage for the picture above?
In addition the res was at 5.7 for a few days. I recently adjusted the pH to 6.1 hoping to increase manesium uptake if this is the problem. Any suggestions on what the pH should be ideally at this moment?
Also should I be using the epsom salts? I have heard that h3ad dropped them out of his formula but at the same time others say that adding magnesium to his formula is absolutely essential!
Is it possible that adding (unnecessary?) epsom salts caused this either?
Thanks for any help you guys can throw me!
-XIII
Some of the plants. Affecting mostly top leaves on plants.
An average leaf halfway affected. Looks like a pic I've seen before, "phoshorus and potassium lockout ph related".
Average affected plant
In addition the leaves are canoeing upwards toward the light.
Coco
How long has this problem been going on? 7 days
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents) No
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...) Top feed drip 3x a day 30 seconds
What STRAIN are you growing? Honeybee
What was the establishing technique? (Were the seed or clone?) Clone
What is the age of your plants? 1 month veg
How long have they been in there mixture they are in now?(coco,soiless etc..) 3 weeks
How tall are the plants? 30" or so
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? Week 1 flower
What Technique are you using? Bushes
What substrate/medium are you using?(Hydroton, RockWool etc.) bagged bcuzz coco
What is the Water temperature? room
What color are your roots? White? Brown? Are your roots slimy? white
What Nutrient's are you using?(If growing soiless) gh flora series
How much of each nutrient are you using with how much water? 6 mL per gallon micro, 9 mL per gallon bloom.
How often are you feeding? (If using soiless) 3x a day
How often are you giving nutrients? (If using soiless) every watering
If flowering, when did you switch over to using Bloom nutrients? same formula
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) micro, bloom, ph'd
What is the TDS/EC/PPM you are using? PPM meter broken
What is the pH of the "Tank"? 5.7-6.1
Are you sure your calibration is correct on your equiptment? Calibrated with fresh solution often
When was your last watering? today
What is your water temps? room temp
When was your last feeding change? (ie. grow-bloom-micro-additional) Mix every few days
How often do you clean your system: example: Flush out water replace with clean water and nutrients? Every few days as necessary
What size bulb are you using? 1000w HPS
What is the distance to the canopy? 24"
What is your RH Factor(Relative Humidity)? 40*
What is the canopy temperature? Varies from 72-82
What is the Day/Night Temp? (Include flucutaion range) 77*
What is the current Air Flow? (cfm etc.) sealed room; oscillating fan
Tell us about your ventilation, intake exhaust and when its running and not running ? sealed room
Is the fan blowing directly at plants? no
Is your water HARD or SOFT? RO
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? RO
Are you using water from a water softener? No
Has plant been recently pruned, cloned off of or pinched No
Have any pest chemicals been used? If so, What and When? Azamax as a preventative measure 3 days ago
Are plant's infected with pest's No
This problem began about a week ago as canoeing. I (mis?)diagnosed this as 'praying for magnesium' and added epsom salts per h3ad's formula to the res at a rate of 1 tsp per 5 gallons nutrient solution.
I am wondering if the leaves canoeing could be a symptom of heat stress?
A few days later the canoeing was still there and I began to notice the edges of the leaves burning. They look very similar to the picture above for phosphorus deficiency. Is it possible to mistake heat damage for the picture above?
In addition the res was at 5.7 for a few days. I recently adjusted the pH to 6.1 hoping to increase manesium uptake if this is the problem. Any suggestions on what the pH should be ideally at this moment?
Also should I be using the epsom salts? I have heard that h3ad dropped them out of his formula but at the same time others say that adding magnesium to his formula is absolutely essential!
Is it possible that adding (unnecessary?) epsom salts caused this either?
Thanks for any help you guys can throw me!
-XIII