Hi everyone, I have a tank with velvet and am cycling a new tank...I have some really nice rocks covered in coralline that are in the infected tank and I would like to use a couple pieces for my new tank...How can I sterilize them without bleaching the color of the coralline? I was thinking about using an autoclave because everything dies if it gets hot enough. This should do the trick, right? BTW, the pieces aren't very large.