Originally Posted by jlehring
I have 2 65 watt 10kk daylight 2 65 watt actinic coralife system with 4 moon light LEDs. It's a 55 gallon tank. Is that enough? I have always heard about 3 watts per gallon. And with the sand and live rock I actually only have 45 gallons of water.
The watts per gallon standard is a very old rule of thumb that is not accurate. It all depends on what kind lighting. 3 watts per gallon would only be acceptable for LED
's. what kind of lights are you running and how long is your tank? Sounds like you have enough light unless you are running power compact bulbs on a tall tank. The wattage ratings run high on PC
bulbs and are really deceiving as they are not as intense as T5s, MH
, and LEDs, which is why the watts per gallon rule is not accurate.