Thanks, Tony.
For those of you who are interested, here are some details on my system:
Tank: 80 U.S. gallon bowfront (265L)
Lighting: Four 55W T5HO flourescent lamps (6500K), on 10 hours with 3-hour midday burst (only two lamps on for remaining 7 hours)
CO2: Pressurized, injected using Red Sea...