The UltraZap pond biofilter range is a family of compact filter chambers built around biological filtration. The media inside gives nitrifying bacteria a home, converting harmful ammonia and nitrite into much safer nitrates — the natural cycle that keeps fish and plants healthy. Choose the chamber size for your water volume, from a small 5L unit up to a 50L filter for larger ponds.

They suit garden ponds, koi setups, aquaculture systems and large aquarium or fish tank filtration.

Good to know:
– Five sizes: 5L, 10L, 15L, 25L and 50L
– Biological filtration for ammonia and nitrite control
– Compact, low-maintenance design
– For ponds, recirculating systems, aquariums and fish tanks