Hi all about two weeks ago I got a tank used from a guy that was well established. pretty much all of the live rock had great coralline algae grown on it. I has been a couple of weeks and I am struggling with some brown algae. people keep telling me its normal after a tank move. I have now noticed that it appears to be turning white in many areas. maybe I am not remermbing correctly but there was not any white areas when I first moved the tank over. what is this? I have done two water changes since I got the tank. phosphate 0 Nitrate as high as 5 at one point ammonia 0. My calcium is like 600 which I know is higher than desired. Also when I moved the tank in I was able to transport more than 30 gallons of original water tank is 35 gallon.