Wait, 3 x 25g on just the one UFO?
Also, I bet what you point out with the transition outdoors implies the UV is in some way similar enough to sunlight. I think the UV is what plants need to harden off to when moved outdoors.
I was able to get a new one for 95. But I like your set up cultivation. Do you use just LEDs? I think I see some white light in the corner.
I have been thinking about what light combos would be best.