I have more questions than answers regarding bio pellet reactors. I have been swaying back and forth on the decision to install one on the new tank build. I plan on keeping a mixed reef tank with the majority being lps and softies so I am concerned by the reviews of folks having difficulty with these.

One of the things I have noticed is that a lot of people here have put the reactors on line on an established tank. I wonder what the difference would be if it was started from day one on a new tank?