Actinics are more for aesthetics than for coral growth (10000k provides much more useful light than actinics) so they don't have to be replaced until they are losing their power. It will really depend on what type of bulbs & other factors. You use 12hrs/day so they won't last as many months compared to someone who only uses them for dawn/dusk effect.
Anthony
__________________
If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
|