Even if you have nothing but base rock in your tank, growing a healthy, colorful crop of coralline algae may not be as difficult as you think. If you already have coralline growing in your tank, there are a few steps you can take to help it quickly multiply.
Forums: Coralline Algae Bleaching Out? "We just re-rockscaped my 55g tank a couple nights ago when I added 60lbs of hirocks. It appears I have some coralline that is bleaching out?? What could cause..."
Photo by Stan & Debbie Hauter