Quote:
	
	
		| 
					Originally Posted by BlueAbyss  I see what you're all saying. I'm sort of tempted to use a single MC-E as a plant grow light though, I'll bet it will make for some stocky seedlings (like metal halide)... something to explore. But I see what you're saying about having it over a 10 gallon... not enough depth, I suppose you would need a fairly deep tank to make it worth it.
 Alright, XR-Es it is! I still want to run them at a lower mA though.
 | 
	
 I run XR-Es at 350mA on my 3 gallon pico.  So you could run probably 500mA with optics and have enough PAR for SPS in a 10 gallon.  I will be borrowing a PAR meter shortly and will measure PAR in the pico running 350mA and no optics for reference.