All-in-one internal sponge filter with 5W built-in pump, dual sponges and ceramic bio media.

Setting up a quarantine tank, a clownfish breeding system, or a marine grow-out vessel quickly enough to be useful means having filtration that works from day one without requiring a separate air pump, extensive pipework, or time to build a biological cycle from scratch. A compact internal filter with a built-in pump and included bio media provides mechanical, biological, and biochemical filtration in a single unit that is straightforward to position and run.

This internal sponge bio filter combines a 5W submersible pump, dual fine sponges, and ceramic bio media in a single self-contained unit suitable for freshwater and marine tanks up to 120L at £19.99. The dual sponges handle mechanical debris capture and provide a large colonisation surface for the beneficial bacteria that process ammonia and nitrite, while the ceramic bio media adds further biological filtration capacity for stable water chemistry over time. The adjustable outlet height of 26 to 37cm allows the output to be positioned for appropriate circulation in different tank depths, and the 1.7m cable length gives flexibility in placement. The pump runs on 220 to 240V at 50Hz and draws 5W.

Flow is gentle enough for fry and small marine juveniles including post-metamorphosis clownfish, making it well suited to breeding and grow-out tanks where an impeller-driven filter with a standard intake would present a risk to small livestock. For newly hatched larvae, introduce once fry are stronger swimmers and keep the pump at minimum flow initially.

Differentiated from the corner-style air-driven sponge filter also in the Reefphyto range: this unit requires no air pump or airline and includes ceramic bio media for enhanced long-term biological performance, making it a more complete standalone filtration solution for systems up to 120L where an air supply is not already in place.

If you have questions about filtration for a breeding or quarantine system, contact us directly and we are happy to help.