Biological filter 2-chamber 0.25 m³ for RAS

Biological filter 2-chamber 0.25 m³ from CrawTec is a compact and effective solution for water purification in small closed water supply systems (RAS). The two-chamber design provides separate biofiltration stages, creating optimal conditions for aquatic life.

Why choose this biofilter?

• Compact size - the dimensions of 1000×500×400 mm allow you to install the filter even in small systems.
• Durable construction - made of 6 mm thick food-grade polypropylene, resistant to water and chemicals.
• High cleaning efficiency - designed for 100 litres of floating bioburden with a working surface of 1000 m²/m³. Bio-loading is not included in the price of the filter.
• Optimum aeration - equipped with a compressor and two 350 mm long tubular atomisers for even oxygenation of the water.
• Easy integration - standard 50 mm inlet and outlet pipes allow the filter to be easily connected to the RAS system.

How does a two-chamber biofilter work?

Water enters the first chamber, where solids are trapped and the biological purification process is started. The second chamber contains a floating bio-load, on the surface of which useful bacteria actively develop, decomposing ammonia and nitrites. In addition, the filter is equipped with a filter sponge, which traps small contaminants and promotes biological water purification.

The aeration system with compressor and tubular atomisers ensures oxygenation of water, which accelerates biofiltration processes and improves water quality.

What systems is this biofilter suitable for?

The 0.25 m³ biofilter is ideal for small aquaculture farms, personal aquariums and auxiliary filtration in larger systems. It is effective for breeding crayfish, shrimp and fish, ensuring stable water parameters.

Where to buy a 2 chamber 0.25 m³ biofilter?

CrawTec offers reliable equipment for aquariums. Order a biofilter and get a quality solution for water treatment in closed systems.