Hi is there anybody out there who can help me please. I bought a lovely acropora about three months ago which had some interesting growth on it which I now understand to be brown briarium.Basically it has overtaken my tank and is growing rapidly. I have taken some of the live rock out and scrubbed it with a brush but to no avail is there anything I can do to get rid of it either living that can eat it or something to add to the water many thanks Bexlee.