Rockwool cubes, solution of 6.0ph, around 100ppm with a few drops of root xcel and super thrive. strain is OG kush and LVPK. they are growing under 2ft 24w CFL lights...
Clones are still alive and popping nice lush white roots at 2 weeks.. the yellowing only occurs at the very tops of the clones, all other foliage is green and healthy.
I have been solving by simply cliping off the burnt leaves and they still survive.
It happens to about 25% of the clones in my chamber, didnt start happening to very recently...i still have a very high success rate.
my hypothesis was that its CFL light burn..but the lights are seperated from the clones by the plastic chamber
my other hypothesis is that its a nutrient overdose from the perlite that i layered the trays with to help regulate humidity. its standard chunky perlite soaked in straight tap water.
thanks in advance and rep points will be dished out to all who contribute....
Here are some pics
Clones are still alive and popping nice lush white roots at 2 weeks.. the yellowing only occurs at the very tops of the clones, all other foliage is green and healthy.
I have been solving by simply cliping off the burnt leaves and they still survive.
It happens to about 25% of the clones in my chamber, didnt start happening to very recently...i still have a very high success rate.
my hypothesis was that its CFL light burn..but the lights are seperated from the clones by the plastic chamber
my other hypothesis is that its a nutrient overdose from the perlite that i layered the trays with to help regulate humidity. its standard chunky perlite soaked in straight tap water.
thanks in advance and rep points will be dished out to all who contribute....
Here are some pics