| Pond Capacity (gallons) |
Media Volume (cu. ft.) |
Surface Area per Cubic Foot (sq. ft.) |
Fish Load Capacity (lbs) |
Media Agitators |
Air Volume Pumped (cu. ft.) |
Dimensions (Diameter x Height) |
| Up to 75,000 |
33.3 |
Over 600 |
Up to 1,650 |
Two 2 HP high-output agitators |
Over 200 |
48" diameter x 66" tall |
The AlphaNANO Megladon 33.3 Filter is a high-performance filtration system designed for large koi ponds up to 75,000 gallons. This massive filter features 33 cubic feet of AlphaNANO media, providing over 600 square feet of surface area per cubic foot, which is approximately 50% more than traditional bead filters.
- High Output Media Agitators: Equipped with two 2 HP high-output media agitators that pump over 200 cubic feet of air into the filter, ensuring constant agitation and maximum exposure of the media to water.
- AlphaNANO Media: Specially designed media that evenly distributes debris throughout the filter bed, minimizing clogging and maintaining consistent flow.
- Durable Construction: Built with high-quality materials to withstand outdoor conditions and ensure long-lasting performance.
AlphaNANO Megladon 33.3 Filter offers an efficient solution for maintaining optimal water quality in large koi ponds. It is available for purchase through authorized dealers.
Beast of a filter—pond’s spotless.
Solid build and smart design—3‑inch ports, rugged construction, and huge filter capacity. My service calls are down, water stays clean, and the koi are thriving.
Installed it last spring; massive media and twin agitators clear my big koi pond fast and clean.
Running the Megladon 33.3 on my 75,000‑gallon pond for nearly a year. It handles over 1,600 lbs of koi easily—clarity is next-level, backwashes are quick, and maintenance feels minimal.
