Apr 25, 2011 #1 A alex07 Aquarium Advice FINatic Joined Apr 13, 2011 Messages 670 I have a Aqua-Glo 18"/46 cm 15W T8 18,000k bulb. Is that too much for plants or am I good to go?
Apr 25, 2011 #2 fort384 Dividing by 0 Site Team Joined Nov 23, 2008 Messages 13,931 Location Illinois It is high. Probably not very good red peaks in the light. 6500-10000k would be better.