I have a tonne also. They dont do any harm. But they dont look great when you have a hundred of them. You can brush them off your rock fairly easily. I tried killing them off by putting them in my sump. They loved it in that dirty space.
__________________
90 gal, 30 gal sump, T5 lights
Just getting into simple corals.
My wife already hates my new hobby! 
|