Recently transplanted to a 5 gallon pot with a Super Soil: (Neem seed, Kelp, Superchar, Worm castings, FFOF, hydrocorn).
Seedling lights: 125 W Agrobrite (cycle 18/6) to new vegetation tent
Lighting: 600 W MH (cycle 18/6)
Exhaust system w/ 6 inch fan
Humidity was low recently (35%) but is now stable at 50
Temperatures are hard to control with MH. 85 last night. To control: I’ve opened half of the front flap of a 5X5 grow tent and placed a window A/C close by to stabilize. Temps hover between 80-87 with light on.
Oscillating fan is inside the tent
Are these heat blisters? It is only affecting one out of five plants right now possibly bc of a hotspot. The original cotyledons are yellowing.
Thoughts?