please could anyone give a little advice. Everything seems to be running ok no major problems.The one thing that's niggling me is the co2 distribution I'm sure there is a better way of doing it than the one im doing now.At the moment ive plenty of flow the filter turns over a 1000lph and i have 3 koralia 1's. Under one of these powerheads i have a rhinox diffuser blowing the co2 around the tank. I have the drop checker at the other side is lime green im a little concerned that most of the bubbles are confined to one side of the tank (trigon 190) Is there any way of sorting this.many thanks.