External Aquarium Filter Tetra EX 1500 Plus for 300–600 L tanks, multi-stage filtration, adjustable flow

Tetra EX 1500 Plus is an external canister filter designed for aquariums with volumes between 300 and 600 litres. It delivers multi-stage mechanical, biological and chemical filtration using replaceable media, and features an adjustable flow rate to match different stocking levels. Integrated priming simplifies startup and maintenance, while the sealed canister design reduces noise and prevents leaks. The unit is intended for community and planted tanks where water clarity and stable water parameters are important.

Advantages

The filter combines mechanical, biological and chemical stages in one compact external canister, enabling thorough removal of particles, dissolved contaminants and support for beneficial bacterial colonisation. An adjustable flow control lets you tailor water circulation to the needs of fish or plants, and the replaceable media trays allow flexible configuration and easy media replacement. Integrated priming and a secure seal improve convenience during installation and reduce the risk of spills.

Suitable for

• Community aquariums with mixed species
• Planted tanks requiring stable water quality
• Higher-stocked aquariums that need increased filtration capacity
• Aquarium setups where adjustable flow and quiet operation are desired

Key specifications

• Recommended aquarium volume: 300–600 litres
• Filtration stages: mechanical, biological, chemical
• Replaceable media trays for flexible media arrangement
• Adjustable flow rate for matching stocking levels and plant requirements
• Integrated priming system for easier startup
• Sealed canister design for reduced noise and leak prevention

How to use

Position the canister below the aquarium on a stable surface. Install the provided hoses and fittings according to the supplied assembly guide, load the media trays with the chosen filter media, and prime the unit using the integrated priming function until water flows through the hoses. Adjust the flow rate to the required level for your aquarium occupants and monitor performance during the first days of operation. Follow routine maintenance by rinsing or replacing media as required to maintain effective mechanical and biological filtration.

Usage recommendations

For best results, choose media appropriate to the aquarium’s needs: coarse mechanical media for high particulate loads, biological media with high surface area for bacterial colonisation, and chemical media such as activated carbon for removing odours and dissolved impurities. Check flow settings periodically and perform scheduled media maintenance to preserve water clarity and stable parameters.