solo Posted January 20, 2004 Share Posted January 20, 2004 In my new 20l tank I have some well established rock from a friends tank that is covered with purple coraline algea. How do I encourage this to spread or grow? Link to comment
bri7795 Posted January 20, 2004 Share Posted January 20, 2004 Keep calcium around 450ppm, and alk around 3-4meqs. You could also try dosing kalwasser. It will starts to spead in about 3-4 months under good conditions. Link to comment
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