TheFertilizer
Well-Known Member
I've been having this problem over multiple grows, still not really sure what is going on. I suspect I'm just over-watering still.
This one seems to be doing the worst. The purple on the stems is a genetic thing, but I'm not sure what's up with the yellow cotyledons and the brown marks on the first leaves, but mainly they just have this over-watered look. There's also these strange white bumps on the stem, but it might also be genetic as well because one of the last plants from previous cycle I had of this strain was a similar phenotype ( purple stems ) and it also had those bumps. I'm worried however that this might be some kind of disease. I doubt it could be attempting to root since the humidity stays so low.
https://www.420magazine.com/gallery/data/500/IMG_20170102_111212.jpg[/img
] [img]https://www.420magazine.com/gallery/data/500/IMG_20170102_111046.jpg
I think it's over-watering because I have been pretty bad at that in grows past, but I went ahead and got a scale and a empty solo cup with bone dry soil to test against this time around. So I zero the scale to the weight of the dry-cup, so that gives me the weight difference between the dry cup and the watered ones in grams. They're all about 175 grams when watered, but first I only let them get down to 50-60 grams and then the latest watering they were only at 30-40. I'm thinking that's still too much because 30/175 = 17% of the water left.
Apart from over-watering I suspect either low humidity or lack of nutrients. So far I have only fed them once with 120 PPM solution. I know generally you only want to give them tap water for a little bit, but this soil has been reused twice so far, and so I didn't know how much the nutrients have been depleted. I figure 120 PPM would be a low enough dosage to just give it barely enough if it didn't have enough in the soil.
The humidity has just been impossible to get control of. I bought a humidifier, but it runs out so quickly that the humidity still varies quite a bit between day/night. You can see the hygrometer in the background in the first two shots.
My journal has all the details about what I'm using, what's been done so far, etc. This would be the 4th week since I planted them and they're pretty much starting vegetative. More pics there too
Platinum Girl Scout Cookies - 400W MH/HPS - 4x4 Tent Grow
This one seems to be doing the worst. The purple on the stems is a genetic thing, but I'm not sure what's up with the yellow cotyledons and the brown marks on the first leaves, but mainly they just have this over-watered look. There's also these strange white bumps on the stem, but it might also be genetic as well because one of the last plants from previous cycle I had of this strain was a similar phenotype ( purple stems ) and it also had those bumps. I'm worried however that this might be some kind of disease. I doubt it could be attempting to root since the humidity stays so low.
https://www.420magazine.com/gallery/data/500/IMG_20170102_111212.jpg[/img
] [img]https://www.420magazine.com/gallery/data/500/IMG_20170102_111046.jpg
I think it's over-watering because I have been pretty bad at that in grows past, but I went ahead and got a scale and a empty solo cup with bone dry soil to test against this time around. So I zero the scale to the weight of the dry-cup, so that gives me the weight difference between the dry cup and the watered ones in grams. They're all about 175 grams when watered, but first I only let them get down to 50-60 grams and then the latest watering they were only at 30-40. I'm thinking that's still too much because 30/175 = 17% of the water left.
Apart from over-watering I suspect either low humidity or lack of nutrients. So far I have only fed them once with 120 PPM solution. I know generally you only want to give them tap water for a little bit, but this soil has been reused twice so far, and so I didn't know how much the nutrients have been depleted. I figure 120 PPM would be a low enough dosage to just give it barely enough if it didn't have enough in the soil.
The humidity has just been impossible to get control of. I bought a humidifier, but it runs out so quickly that the humidity still varies quite a bit between day/night. You can see the hygrometer in the background in the first two shots.
My journal has all the details about what I'm using, what's been done so far, etc. This would be the 4th week since I planted them and they're pretty much starting vegetative. More pics there too
Platinum Girl Scout Cookies - 400W MH/HPS - 4x4 Tent Grow