Urchins. Maybe 2 of them, but they eat Star Polyps as well, at least mine did.Hi,
I have battles GHA for years in my tank. GHA has never left my tank it won't stop can't control my nitrates and I can't keep any LPS alive. My tank is 65 gallons it has a marble wrasse a royal grama and a singular clownfish the other three have jumped out. Water changes won't work or anything. What should I do I just want the GHA out of my tank that's all I want at this point.