Mar 1, 2013 #1 200 gallon reef Aquarium Advice FINatic Joined Dec 11, 2011 Messages 507 Anyone know what type of algae this is? Yellowish color Attachments ForumRunner_20130301_184541.jpg 67.5 KB · Views: 67 ForumRunner_20130301_184552.jpg 65.4 KB · Views: 74
Mar 1, 2013 #2 Paulyboy123 Aquarium Advice Regular Joined Sep 22, 2012 Messages 58 Diatoms maybe how old is your tank
Mar 1, 2013 #3 OP OP 200 gallon reef Aquarium Advice FINatic Joined Dec 11, 2011 Messages 507 I thought the ditoms were the brown color. What is the yelow color?
Mar 1, 2013 #4 Paulyboy123 Aquarium Advice Regular Joined Sep 22, 2012 Messages 58 Oh idk that but it could be some type of hard Alger growing if it is a dead spot in your tank