I picked up some zooanthids, xenea, leathers, candy canes. Anyways, the rocks that these are on are covered in green hair algae. I fear putting them in my 99.99% algae free tank. I don’t want this algae to spread to everything in the tank obviously. I keep my nitrates and phosphates down which is why I have very very little algae now. If I introduce this stuff into my tank, will it spread? Can I eliminate it just by keeping my cheato algae in the refugium and keeping my nitrates and phosphates down? I have read that hair algae should be avoided at all costs.

I really want to save these corals. Am I going to have to cut them off the rocks and glue them to other rocks in my tank? One rock has probably 100 polyps of zoo’s on it.