Would my livestock survive if I completely changed my sandbed and changed out all of my liverock? I'm thinking of maybe getting fully cured liverock. Even though I think my liverock is very slowly coming around it appears to have some small purple spots coming back in. I seriously me very slowly its still 90% brown and green looking. I just feel like when I change my sandbed it is going to be counter-productive to have this nasty liverock still sitting in the tank. Even though I am going to scrub and rinse this liverock some more if I keep it. Any opinions let me know.