I'm about to receive my new Waterbox 65.4 tank but can't decide on what light size to get. The tank is 47.7" long and the light bar i am looking at is the orphek or4 that comes in 36" or 48". The lights will be about 20" above the tank. Will the 36" be long enough to cover the length of the tank or should I go with the 48"?
