Add plant filtration to your aquarium.

Aquatic Circle adds an above-tank plant filtration stage to your freshwater setup. Use it as the main filter on smaller tanks or pair it with your existing filtration system.

Add a living filtration stage to your tank.

Aquarium water flows through the planter, where live plant roots access nutrients from fish waste. It’s a clean way to add plant filtration without building a custom DIY setup.

  • Use as a primary filter on smaller freshwater tanks

  • Pair with existing filtration on larger setups

  • Grow plants above your aquarium

  • No soil required

  • Fish provide the fertilizer

Diagram illustrating an aquaponic filtration system with five steps: 1. Fish produce nitrogen-rich waste; 2. Bio-filter breaks down ammonia into nitrates; 3. Nitrate flows through plant roots; 4. Plants absorb nitrates as nutrients; 5. Clean water is returned to the aquarium.

Water flows in. Plants filter it. Clean water flows back.

"I built this system because I wanted a cleaner tank without the constant upkeep. Aquaponic filtration is the best filter I'd ever used."

- Dung Minh Hoang, Founder

Backed by Maryland innovation programs

Logos of various Maryland organizations including University System of Maryland, Allegany County, University of Maryland Center for Environmental Science, Maryland Energy Innovation Accelerator, TEDCO, Maryland SBDC, and Suit Station.

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