I have grown outdoors for 38 seasons this is my first indoor- growing medium is 4 cubic feet pro-mix ph balanced at 6.5- added 15 pounds worm castings- with 1/2 bag of Happy Frog and 20% perlite- this mixture highly recommended by my equipment supplier- growing under a 1k MH at this time, temps are 76-to 80- 24 inches from canopy and 68 to 65 for night temp- plenty of circulation- RH between 57 and 20 - drops pretty low when heater comes on, added a humidifier this morning- Problem is seedling planted 9 days ago all growing very well- second set of leaves filling out- look good except there is an uneven color on some , very mottled - light to dark areas with soome of the leaves dropping- almost curling down but more of a droop- could this be root burn - been suggested my mixture is too hot for seedlings, if so how do I remedy this problem- obviously plan on transplanting to same medium, wish I had photos- I have Googled images and have not seen anything similar- could use all you experienced growers with this-
littlemountain Reviewed by littlemountain on . need help with seedling problem I have grown outdoors for 38 seasons this is my first indoor- growing medium is 4 cubic feet pro-mix ph balanced at 6.5- added 15 pounds worm castings- with 1/2 bag of Happy Frog and 20% perlite- this mixture highly recommended by my equipment supplier- growing under a 1k MH at this time, temps are 76-to 80- 24 inches from canopy and 68 to 65 for night temp- plenty of circulation- RH between 57 and 20 - drops pretty low when heater comes on, added a humidifier this morning- Problem is seedling Rating: 5