I have a rubbermaid tub with four 23W cool white (5000K) fluorescent bulbs in it that I use for seedlings and small veg plants. I ran out of room in it so set up an LED fixture in a closet with four 15W 5000K LED bulbs.
The plants in the closet are clones of the seedlings in the rubbermaid. They’re in the same room, same medium (coco) and fed the exact same food (megacrop at ~800ppm). The original seedlings in the rubbermaid are all totally healthy and happy despite being stuck in solo cups for weeks now. The clones in the LED room all have a lighter colour and just look generally unhappy. What the heck??
Here’s the rubbermaid. All original seed plants that have been topped a few times. All growing happily and nice green color:
Here’s a shot of the LED closet. Note the fan and I keep the door open for air exchange. Its in the same room as the rubbermaid:
Here are 2 jungle spice plants. Left is the seedling mother that lives in the rubbermaid, and right is the clone from the LED closet. Again, they are in identical mediums and fed the exact same food:
When I first set up the LED closet I had the lights over a foot away just to be safe, then I moved them to about 5-6", and now have them at about 8". They’ve been doing this the whole time in there so I doubt it’s light burn but who knows?
Anyone have any thoughts on this?