Hello
I have a 100 gallon Reef tank. Been running many years. A few months ago I had a outbreak of Red Algae which I successfully remove with Chemiclean. Since that point I have had an increase in Brown algae on gravel. Not out of control but noticeable. Not sure it’s related. Also large number of large coral which I am speculating is shielding the light. My level are Calcium 420, Alk 9.5, mag 13. Ammonia 0, nitrate and nitrite close to zero. 10 percent water change per week. Any ideas
I have a 100 gallon Reef tank. Been running many years. A few months ago I had a outbreak of Red Algae which I successfully remove with Chemiclean. Since that point I have had an increase in Brown algae on gravel. Not out of control but noticeable. Not sure it’s related. Also large number of large coral which I am speculating is shielding the light. My level are Calcium 420, Alk 9.5, mag 13. Ammonia 0, nitrate and nitrite close to zero. 10 percent water change per week. Any ideas