If you need to squeeze all of the PAR you can out of that light, a good reflector is an absolute necessity - the gutter won't do it.
The tank is going to be pretty low tech.
With that being said, I was looking at the AH supply reflectors, but there is no way of knowing if it will fit well or properly. I've never used them before. can it be molded to the inside?
If not, I am going to get this: http://www.amazon.ca/2in-Yards-Scotc...2166043&sr=8-9
Anyways, I bought the white gutter. Ordering the ballast tonight or tomorrow.