Im hoping someone here can help me out.
Ive got 9 Northern Light plants in a DWC system that are into their second week of the 12/12 light regime.
Current Conditions:
2 Gallon Bucket
PH 5.8
GH 3 Part Nutes 1.5ml/3ml/6ml per 10L (Could this amount cause nute burn)
Under 400w HPS
They have been fine until two days ago when I found that the blade tips (only) of four leaves have discolored to a brown yellow color and started to curl (Up and Twisty). The curled discolored tips look dead and dry but when touched they still seem soft, as if only stained.
Otherwise the plants are very green and healthy looking with hairs bursting out everywhere.
After reading through the rollitup FAQ on nute disorders, I can only find three pics that are similar, BUT not one is exactly the same as my leafs.
Potassium Deficiency The closest resemblance
Magnesium Deficiency BUT Only the dry looking parts are curling.
Heat Stress Plants have adequate airflow.
Im now clueless
Ive got 9 Northern Light plants in a DWC system that are into their second week of the 12/12 light regime.
Current Conditions:
2 Gallon Bucket
PH 5.8
GH 3 Part Nutes 1.5ml/3ml/6ml per 10L (Could this amount cause nute burn)
Under 400w HPS
They have been fine until two days ago when I found that the blade tips (only) of four leaves have discolored to a brown yellow color and started to curl (Up and Twisty). The curled discolored tips look dead and dry but when touched they still seem soft, as if only stained.
Otherwise the plants are very green and healthy looking with hairs bursting out everywhere.
After reading through the rollitup FAQ on nute disorders, I can only find three pics that are similar, BUT not one is exactly the same as my leafs.
Potassium Deficiency The closest resemblance
Magnesium Deficiency BUT Only the dry looking parts are curling.
Heat Stress Plants have adequate airflow.
Im now clueless
but the damaged leaves are showing no signs of improvement (will chop them today and watch for new problems).
