If you own a tank sized at 30 US gallons (114 litres) or larger, we hope you will enter our May Tank of the Month contest. The contest will start accepting entries on May 1st. So take a pic or make a youtube video of your tank and be ready to enter the contest. You will see a TOTM banner at the top of the forums when contest starts.

20,000 gallons.. inground swimming pool size 12 foot by 32 foot by 7 foot deep.. per calculator on this site , that would be 20,000 gallons