Yeah I had no idea that I could get one so reasonably! That is definitely going to be something I look into. With my luck though my lighting will be fine and ill be back to square one for my color issues LOL.Thanks to mcarrolls posts, I learned how to use my lux meter also. There are lux meters that do have a submersible probe, like mine made by Milwaukee Instruments, but they may be more pricey than $20 (I believe mine was around $80)