Yea your calcium & magnesium play a role in giveing you coraline algea. If your parameters are in check then you will start to see your rock come to life. I use Salifert test kit for my Mag., I will eventually be buying all Salifert as I feel they are pretty accurate. But I am not expert on all of this, you will have to wait to see if Tangster or Otty chime in to see what they have to say. |