Internal Aquarium Filter sera Serafil 120, compact internal filter for small tanks

sera Serafil 120 is a compact internal aquarium filter designed for small freshwater tanks. Mounted inside the aquarium, it draws water through integrated filter media to provide mechanical and biological filtration. The unit helps reduce surface film, improves water clarity and contributes to a more stable aquatic environment for fish and aquatic plants in compact setups.

Advantages

The sera Serafil 120 combines a small footprint with multi-stage filtration, delivering continuous circulation and effective removal of suspended particles. Its internal mounting minimizes external equipment and simplifies installation. The design supports biological colonization on filter media, which aids in ammonia and nitrite breakdown and helps maintain water quality in small aquaria.

Suitable for

• Small freshwater aquariums and nano tanks
• Community tanks with small fish species
• Planted aquaria requiring low-flow filtration
• Quarantine or hospital tanks for short-term use

Key specifications

• Type: Internal aquarium filter providing mechanical and biological filtration
• Application: Designed for use in freshwater aquaria
• Mounting: Submersible, attaches inside the tank
• Flow: Compact circulation suitable for small-volume tanks
• Filtration media: Integrated multi-stage media for particle removal and biological colonization
• Size and footprint: Small, space-saving design for limited aquarium space

How to use

Install the sera Serafil 120 submerged on the inner glass surface at a suitable height to ensure even water circulation. Connect to a compatible power source and position the outlet to achieve the desired flow pattern, avoiding direct strong currents on delicate plants or fish. Regularly inspect the unit and rinse the mechanical filter media in dechlorinated aquarium water during maintenance to avoid disturbing beneficial bacteria. Replace or refresh media according to observed performance and manufacturer guidance.

Usage recommendations

For optimal results, place the filter where it promotes gentle surface movement to reduce film and improve gas exchange without creating excessive flow. Perform routine maintenance at intervals based on tank stocking and bioload, and avoid cleaning all filter media at once to preserve biological filtration. Use in freshwater only and follow safety instructions for submerged electrical equipment.