Green hair algae in reef tank - Green Hair Algae explosion in saltwater tank

Green Hair Algae explosion in saltwater tank. My corals are small and not happy and some soft corals have already died. I lost a hammer coral and torch coral; the rest are not doing well. At first I thought it was water parameters, then lighting, and now this green hair algae explosion out of nowhere is probably what is causing it. I have done 10 gallon water changes 3 days in a row, followed by a 40 gallon water change today, a week later. I have scraped the green hair algae, syphoned it out, and dosed a capful of hydrogen peroxide to kill this green hair algae. Any thoughts on how to kill this green hair algae and keep it gone? saltwater aquarium care and maintenance videos by rotter tube reef.

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#greenhairlagae #greenalgaeinreeftank #greenalgae