Jul 31, 2012 #1 jlbfish Aquarium Advice FINatic Joined Feb 21, 2012 Messages 806 Location Texas Does brown algae discolor fish? Thanks!
Aug 1, 2012 #2 bettaowner Aquarium Advice Addict Joined Jun 23, 2012 Messages 5,981 Location Hawaii If you mean diatoms it won't discolor your fish.