A amstar15 Fish Crazy Joined Jan 25, 2005 Messages 386 Reaction score 0 Location Dayton, Ohio Jul 1, 2005 #1 i have put a new light on my sump. it is a 9 watt 10k bulb and a 9 watt actinic bulb. with it being on my sump and for macro-algae should i switch out the actinic bulb with another 10 k bulb or does it matter
i have put a new light on my sump. it is a 9 watt 10k bulb and a 9 watt actinic bulb. with it being on my sump and for macro-algae should i switch out the actinic bulb with another 10 k bulb or does it matter