Mistertalker
Aquarium Advice Newbie
Has anyone heard about coralline algae dieing off in a well-established tank? the tank has been up for 2.5 years and 40lb of the rock and coral were also in a smaller 40 gal tank previously. No signs of disease it just seems to be less and less. It used to be very thick; nearly 95% of all the rocks that were exposed to the light were covered. But now there is about 45% covered with some rocks completely bare of it. All the fish and corals seem to be healthy and growing. :?