Have this purple growing on my crushed coral and a little in the rocks. In the process of getting my nutrients back in order but nitrates are still at about 30. I vacuum every water change but grows back pretty quickly. Any thoughts or suggestions on managing it?
Chemiclean works very well! Just follow the instructions properly, and then keep the nutrients in check, should get that under control rapidly! Also, Cyano tends to grow in low flow areas, so maybe adding some flow to that area would help as well.