Thanks for your input. I have a display tank that's proven extremely difficult to accurately capture. Doesn't help to have a lousy hack on the other end of the camera. Can you give me some advice as to which settings you might be inclined to start with?
Display tank - Open top ADA 120P w/ 2 150w pendants. Bulbs are ADA "green" bulbs which do indeed have a slight green hue to them.
DSLR - Rebel XTi w/ Tamron 18-55mm (errr, I think) lens
What do you think?