whymedeisgns
Active Member
I've got burns, or something, and I've looked around, ALOT, and even gotten personal opinions from experienced personal acquaintances.
There's alot of disagreement on the issue, so I'm here trying to get some opinions and maybe some corroboration, here goes:
Soil grown from start. Miracle Grow "Organic Choice" chicken manure nutrients, no nitrogen bombs or time released nutes. Grown in a 10 gallon terracota pot, lower inch of pot is pea gravel to help with drainage, upper half is the soil. Top surface layer is also pea gravel.
Nutes are Canna : Bio Vega, (veg nutes, high N) Ph is monitored around 5.7-6.2 depending on the nutes in the water. Water is tap water, run through carbon filtration.
Temps stay between 67 and 78. 67 during lights out. Plant is on a 18/6 light cycle, which is a recent change, i had ehr going on 20/4 since the first week of veg. Plant is about 4-5 weeks old.
Lights are set up with 3 x 25W 6850K cfls on orbital side lighting evenly spaced every 120 degrees, clamped to the pot, sitting about 4-6 inches away from fan leaves. Overhead I have a 2x 65W aquarium light fixture running a 2300 65 W CFL bulb (dual t5's CFL tube, but self ballasted) and a 10,000k 65W CFL tube over head. Progressively raising as plant grows, currently 8-9 inches from canopy. Plastic UV shield is on the aquarium fixture (it can be removed if need be)
I have fans going, and my humidity is between 35-55%. Wattering every other day, feeding every 2nd watering. I also applied some mycrorhizae (sp?) to the root ball when i transplanted it to this pot (little over 2 1/2 weeks ago)
So here's the problem:
I'm starting to have what looks like possibly heat burns, or a nute burn on my fan leaves. It's occurring more on the side facing outward, towards the entrance to my area. But it is is occuring on the other sides too. The side facing out is probably 5x as bad as the other areas. Not all leaves are having the issue, there is no pattern. It happened to old growth, and new growth, but not all new growth, and not symmetrically across the plant (as nute burns usually do)
This is all new as of a week ago, previously the plant had lush healthy green growth, and was spreading out well. Internodal spacing was low, and main stem is/was healthy. Main stem is about 3/4 inches thick at base, plant is about 13 inches tall.
Feeding is documented and well monitored, and changes are also documented. Nothing has changed in the plants routine aside from the light cycle shift to 18/6 from 20/4.
The burns first showed as almost a burgundy red brown and only on some of my larger fan leaves. The red brown seemed to go away, and the plant started to look healthier. Then, the areas that had the burns before, started to deteriorate, as in crumble, and fall apart, leaving holes and gaps in some leaves. Some new growth on nodes has large chunks of leaves missing, and some leaves are contorted in very odd ways.
The leaves still perk up to the light in a very crisp seemingly healthy way, and not all of them all falling apart, only about 15% of the total leaves are having the issue.
Attached is a current picture, does anyone have any idea what might be going on? The closest comparison i found was ozone toxicity, but I'm not using an ozone generator, nor am I at a high altitude. Some suggestions said heat or light burn, but I'm using CFLs, and my temps aren't very high, it doesn't make any sense.
I also have a fan blowing and oscilating hitting the plant.
.
Genetics appear to be a 60-70 % indica, but they are just from a pile of seeds (that i bought, but got mixed up) So I am actually not 100% sure what they are.
There's alot of disagreement on the issue, so I'm here trying to get some opinions and maybe some corroboration, here goes:
Soil grown from start. Miracle Grow "Organic Choice" chicken manure nutrients, no nitrogen bombs or time released nutes. Grown in a 10 gallon terracota pot, lower inch of pot is pea gravel to help with drainage, upper half is the soil. Top surface layer is also pea gravel.
Nutes are Canna : Bio Vega, (veg nutes, high N) Ph is monitored around 5.7-6.2 depending on the nutes in the water. Water is tap water, run through carbon filtration.
Temps stay between 67 and 78. 67 during lights out. Plant is on a 18/6 light cycle, which is a recent change, i had ehr going on 20/4 since the first week of veg. Plant is about 4-5 weeks old.
Lights are set up with 3 x 25W 6850K cfls on orbital side lighting evenly spaced every 120 degrees, clamped to the pot, sitting about 4-6 inches away from fan leaves. Overhead I have a 2x 65W aquarium light fixture running a 2300 65 W CFL bulb (dual t5's CFL tube, but self ballasted) and a 10,000k 65W CFL tube over head. Progressively raising as plant grows, currently 8-9 inches from canopy. Plastic UV shield is on the aquarium fixture (it can be removed if need be)
I have fans going, and my humidity is between 35-55%. Wattering every other day, feeding every 2nd watering. I also applied some mycrorhizae (sp?) to the root ball when i transplanted it to this pot (little over 2 1/2 weeks ago)
So here's the problem:
I'm starting to have what looks like possibly heat burns, or a nute burn on my fan leaves. It's occurring more on the side facing outward, towards the entrance to my area. But it is is occuring on the other sides too. The side facing out is probably 5x as bad as the other areas. Not all leaves are having the issue, there is no pattern. It happened to old growth, and new growth, but not all new growth, and not symmetrically across the plant (as nute burns usually do)
This is all new as of a week ago, previously the plant had lush healthy green growth, and was spreading out well. Internodal spacing was low, and main stem is/was healthy. Main stem is about 3/4 inches thick at base, plant is about 13 inches tall.
Feeding is documented and well monitored, and changes are also documented. Nothing has changed in the plants routine aside from the light cycle shift to 18/6 from 20/4.
The burns first showed as almost a burgundy red brown and only on some of my larger fan leaves. The red brown seemed to go away, and the plant started to look healthier. Then, the areas that had the burns before, started to deteriorate, as in crumble, and fall apart, leaving holes and gaps in some leaves. Some new growth on nodes has large chunks of leaves missing, and some leaves are contorted in very odd ways.
The leaves still perk up to the light in a very crisp seemingly healthy way, and not all of them all falling apart, only about 15% of the total leaves are having the issue.
Attached is a current picture, does anyone have any idea what might be going on? The closest comparison i found was ozone toxicity, but I'm not using an ozone generator, nor am I at a high altitude. Some suggestions said heat or light burn, but I'm using CFLs, and my temps aren't very high, it doesn't make any sense.
I also have a fan blowing and oscilating hitting the plant.
.
Genetics appear to be a 60-70 % indica, but they are just from a pile of seeds (that i bought, but got mixed up) So I am actually not 100% sure what they are.
I've had issues with ph beeing low and high, and trust me, you'll freak out when that happens. It's a much more devastating encounter 
Imo, it looks like a healthy plant. It's better to let it pass, and not take action at such an early stage. Especially when it looks this good in general. Give us an update in a month