Trying to find a brush that I can really scrub rocks with (inside) the aquarium, home depot freaked me out though when I saw some scrub brushes have anti-bacterial coating which I assume would be detrimental to the tank. Currently looking at this one but not a fan of the metal bristles, is there some reef safe scrub brush that is a lot more tough then a tooth brush I can get at hd or lowes etc.?

