Feb 14, 2013 #1 Anthony G Aquarium Advice Regular Joined Feb 2, 2013 Messages 50 I have brown alagae growing on my glass is it safe?
Feb 15, 2013 #2 Dimdim Aquarium Advice FINatic Joined Dec 18, 2012 Messages 862 Ya make sure you scrape your tank glass inside every day or every other. Its just diatoms.