Aug 25, 2013 #1 C Clairebear55 Aquarium Advice Apprentice Joined Jun 24, 2013 Messages 20 In some spots on my live rock it's getting darker. Is it algae? It's a dark brown color. Attachments image-1692453815.jpg 139.3 KB · Views: 94
Aug 25, 2013 #2 aquandrew Aquarium Advice Addict Joined May 3, 2013 Messages 1,803 Location waconia minnesota how long has the tank been set up?
Aug 27, 2013 #3 OP OP C Clairebear55 Aquarium Advice Apprentice Joined Jun 24, 2013 Messages 20 aquandrew said: how long has the tank been set up? Click to expand... For a month and a half
Aug 27, 2013 #4 aquandrew Aquarium Advice Addict Joined May 3, 2013 Messages 1,803 Location waconia minnesota sounds like diatom bloom, normal in a new tank. what are your nitrates? phosphates?