Our new pond is 12,000 gallons. Dimensions are 23 x 12 x 6. Filtration consists of two Nexus 300's with Eazy's, one 120 watt high-output UV light, one 4.25 Alpha One bead filter, one Cetus filter, one Savio skimmer, three air pumps, four TPR's, two four inch bottom drains, and a natural gas heating system. The pond is concrete block construction with R-Tech insulation and a rubber liner. We really had a good time building this new pond, and the fish seem to enjoy it.