Cameron Case wrote: > All other things being equal, is there a reason why I might > choose a 5300K bulb over a 6400K bulb, or vice versa? All other things being equal, the lower temperature lamps will give your tank a sepia tone, and 10000K lamps always look too cold and brittle. IMO 6700K hits the sweet spot! Michael Rubin ~ San Francisco Ҷ2)Ehztk*Zjeƭ