Why is catch basin of my skimmer filling with water?
I bought this system from a gentleman who claimed you just "plug it in and go"... or something to that effect. It looked to be running fine at his place (I bought the whole tank and everything else).
But now once its hooked up, the skimmer is filling up with murky water - is this normal? I did just fill the tank and its muddy as the live sand is all stirred up.
Thanks in advance!