whats going on here?

[mets21]

day 16, under a 1000 watt metal halide. The bulb is about 14inches away. Is the yellowing from sunburn? Temps are 60-72 F.


or is it something else?

Soil is subcools super soil

 

[Shredder]

It sure looks like light bleaching, just move that light up a bit and it should return to normal..........shredder