Hello all I am new to the site and I am setting up a large tank for the first time. I have previously owned a few small to midsize tanks 30-55 gallons but I have no experience in setting up a large tank (500 Gallon) I have several fish currently a silver arowana, 2 alligator gar, a clown knife, grouper?, several pleco's, dinasour bichir, red jewel cichlid and others. I have found that I need to set up the large tank due to the size of the larger fish and so In researching I found this site and thought it would be a good place to find and share information.