Thank you so much Chrisfish. I had to learn some things the hard way but fortunately I learned them before my animals suffered. The most important was to have 10Xs or more turnover in my aquarium. When I was running both aquariums from 1 sump I had less than 4Xs and algae build up was a problem. Now its under control and when I consolidated into just 1 tank even I was amazed how good it looked, ha ha!