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Internal filters are often chosen for their convenience—but most lack the power, bio-capacity, and efficiency of canister filters. The EHEIM biopower series was engineered specifically to solve this problem. By combining the flexibility of modular internal filtration with the performance and biological depth of external filters, biopower brings professional-grade water purification into a compact, easy-to-install internal system.
Whether you keep a planted tank, a cichlid setup, a heavily stocked community aquarium, or a goldfish tank with a high bioload, this internal filter delivers exceptional mechanical, biological, and optional chemical filtration—all in one.
At the heart of the biopower system is a vertical multi-layer filtration process. Water is drawn in from the bottom and travels upward through multiple closed filter baskets—just like an external canister filter. Each layer performs crucial functions:
Lower basket: EHEIM SUBSTRATpro for maximum biological filtration
Inlet basket: A mechanical-biological filter cartridge for capturing debris
Pumphead holder: A fine filter pad for polishing the water
This layered flow ensures a thorough filtration cycle, resulting in cleaner, clearer, and healthier aquarium water.
Biopower is completely modular, allowing you to adjust filter volume and media type based on your aquarium’s needs. Need more biological filtration? Add another basket. Want to reduce flow resistance? Remove one module. The Easy-Klick Locking System lets you attach and detach modules effortlessly.
For even greater capacity, you can extend the filter using ExtensionSET 2—perfect for larger aquariums or tanks with high waste production.
Each module can be cleaned individually, reducing disruption to beneficial bacteria. This ensures better biological stability and more consistent water quality.
Good oxygen levels are essential for fish, shrimp, and beneficial bacteria. The included power diffusor allows you to regulate air intake and boost oxygenation. Adjust the air valve to create fine bubbles or stronger aeration based on stocking density and water temperature.
Alternatively, the diffusor can be swapped for various extension pieces from the EHEIM accessories range to achieve customized water movement.
The round pumphead sits inside a ball-style socket, giving you complete 360° directional control. You can easily aim the filtered water upward for surface agitation, forward for strong flow, or downward for gentle circulation—ideal for species with specific flow preferences.
The flow rate is easily regulated with a control knob on the outflow nozzle, allowing you to fine-tune circulation for everything from delicate fish to energetic swimmers.
Every biopower unit comes pre-filled with:
EHEIM SUBSTRATpro for high-performance biological filtration
Mechanical filter cartridges
Fine polishing pads
This ensures excellent filtration straight out of the box without needing to buy additional media.
The filter attaches easily using strong suction cups that hold it securely in place. To clean or replace media, simply lift the filter from its holder—no need to detach pipes or dismantle complex parts. Because each basket is sealed, cleaning is clean, quick, and mess-free.
The biopower filter excels in:
Freshwater aquariums
Goldfish tanks
Heavily stocked community tanks
Breeding systems
Cichlid tanks
Shrimp-safe setups (with sponge pre-filter)
Planted tanks needing adjustable flow
Its biological strength makes it comparable to canister filters, but with the convenience of an internal design.
For best results with the EHEIM Biopower Filter, combine it with:
TCWS Water Strips to monitor filtration impact
TCWS Bio Media for your external or HOB filters
Maya Algae Cleaning Pads for spotless glass
Sunken Garden Water Conditioner during water changes
Life Aayu Fish Food sized correctly for fish mouths
Life Aayu Nutro Fit Plus to reduce stress in oxygen fluctuations
These additions help stabilize water quality and support healthy biological cycles.
Q1. Can I upgrade the filtration capacity?
Yes—add modules or use ExtensionSET 2.
Q2. Is it safe for shrimp?
Yes, especially with a sponge pre-filter on the inlet.
Q3. Can I use custom media?
Absolutely. Each basket can be filled with any compatible media.
Q4. How often should I clean it?
Every 2–6 weeks depending on bioload, but modules allow staggered cleaning.
Q5. Is the flow adjustable?
Yes, the control knob on the nozzle gives easy flow regulation.
Compact, powerful, and highly customizable, the biopower series brings external filter-level performance into an internal filter body—making it ideal for both beginners and advanced aquarists. Its modular, multi-layered filtration ensures long-term water clarity, stable biological performance, and excellent oxygen enrichment.
Upgrade your aquarium with the high-performance modular filtration of the EHEIM Biopower Filter.
Enjoy clean, healthy, oxygen-rich water with ease.
