Thinking of getting a light meter, any experiences or advice?

[mark]

Would you be better off finding something that measures PAR as wouldn't that take in account spectrum shift as well?

[midgetwaiter]

Keeping track of the spectrum shift is actually really easy to do. A PAR meter is nice but they are not cheap.

http://www.advancedaquarist.com/2006...m=spectrometer

[trilinearmipmap]

Thanks for the link, a spectrometer looks like a good idea.