View Full Version : watts per gallon

08/28/2006, 04:08 AM
hey there, can someone tell me a good amount of watts per gallon for a 75 gallon tank that is 20 inches high

08/28/2006, 04:18 AM
i would like to keep sps corals would 360 watts be enough

08/28/2006, 06:44 AM
Watts per gallon is sortof an outdated form of measurement. So it dpends. 360 watts of what kind of light? If you want to keep sps I would recomend a t5 setup or 2 175w mh bulbs or a combo of both t5/vho and mh

08/31/2006, 05:55 AM
how many t5s would i need and of what wattage(54w?)
would 4 be enough if i kept the delicate sps corals at the surface, and hardier corals at the bottom