Originally posted by edwar050
wow xoxo thats alot of light for a 55, probably pretty good even for hardies.
I did start out with a dual HQI 150 ballast and pendants thinking this would be enough but since Halide lighting is based on depth of the tank (and not necessarly how many gallons) I found that the spectrum was just not what I wanted. When one of the ballast burned out (lesson to everyone: don't buy a dual HQI ballast, they will get too hot, buy them seperate) I converted one of the pendants to a 250 (the 150 and 250 have different connectors) and used the remaining 150 for my 20 long tank.
These are expensive lights, heck, the good bulbs are around a $90 a piece but they are the best you can get and you can keep anything.