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A reliable, flexible, and highly customizable internal filter is essential for maintaining a healthy aquarium. The EHEIM aquaball series stands out as a fully modular internal filtration system that combines strong water circulation, multi-layer filtration, and 360° adjustable flow to deliver crystal-clear, oxygen-rich water in aquariums of all sizes. Whether you maintain a heavily stocked tank, a breeding setup, a goldfish aquarium, or a planted freshwater environment, the aquaball guarantees performance, reliability, and ease of use.
The defining feature of the aquaball is its unique ball-shaped pumphead mounted in a full-motion ball joint. This design allows you to point the outflow in literally any direction for:
Surface agitation
Forward flow
Downward flow
Gentle circulation
Strong directional movement
This makes it ideal for fish that prefer different flow patterns, or tanks that need better surface oxygen exchange.
The pumphead includes a convenient control knob that allows you to finely adjust the pump output and flow rate, making it suitable for both delicate fish and high-flow environments.
The included power-diffusor lets you control the amount of air mixed into the outflow, boosting oxygen levels in the aquarium—perfect for warm climates, high-stocking tanks, or species that require higher oxygen saturation.
You may also replace the diffusor with various EHEIM accessories to customize the outflow style.
Directly beneath the pumphead sits a versatile mediabox that can be filled with different types of filter media depending on your aquarium’s needs:
Coarse filter pad for mechanical-biological filtration
Fine filter pad for polishing and fine debris removal
bioMECH or SUBSTRATpro for strong biological filtration
EHEIM AKTIV for chemical/adsorptive filtration
Additional filter modules can be added or removed to precisely tailor the filter volume. This modular design makes the aquaball one of the most customizable internal filters available.
The aquaball uses EHEIM’s Easy-Klick Locking System, allowing you to easily add or detach filter baskets. You can:
Increase or decrease filter volume
Add specialty media
Clean modules at different intervals
Preserve beneficial bacteria
Extend filtration using ExtensionSET 2
Because each module is cleaned separately, bacteria colonies remain stable and water parameters stay consistent.
Unlike traditional internal filters that draw water from one side, the aquaball features round filter modules, allowing water to be drawn in evenly from nearly the entire surface area. This large intake zone significantly improves filtration efficiency and reduces clogging.
The filter attaches securely using strong suction cups. For cleaning or adding modules, simply lift the filter from its holder—no complicated dismantling needed. This makes maintenance fast, easy, and mess-free.
Thanks to its adjustability and modularity, the aquaball is suitable for:
Community tanks
Planted aquariums
Goldfish tanks
Shrimp-safe setups (with sponge prefilter)
Breeder tanks
Small to medium cichlid setups
Quarantine tanks
Nano to mid-size freshwater aquariums
Its directional flow and oxygenation capabilities make it especially useful for tanks requiring higher circulation.
Pair the EHEIM Aquaball Filter with:
TCWS Water Strips to track ammonia, nitrite, nitrate & pH
TCWS Bio Media in external/HOB filters for stable biological support
Maya Algae Cleaning Pads for routine glass cleaning
Sunken Garden Water Conditioner during water changes
Life Aayu Fish Food to match fish mouth sizes
Life Aayu Nutro Fit Plus to minimize stress in oxygen fluctuations
These help maintain stability and healthy biological activity.
Q1. Can I increase the filter size?
Yes—simply attach more filter baskets or use ExtensionSET 2.
Q2. Is it safe for shrimp?
Yes, especially when used with a sponge pre-filter.
Q3. Does it oxygenate the tank?
Yes—the power diffusor allows adjustable air intake.
Q4. How often should I clean it?
Every 2–6 weeks, but modules allow staggered cleaning.
Q5. Can I use custom media?
Absolutely. The mediabox and modules accept all compatible media.
The aquaball’s simple, modular, and highly versatile design makes it a favourite among aquarists of all skill levels. With 360° directional flow, multi-layer filtration, adjustable oxygenation, and easy maintenance, it provides powerful and customizable filtration in a compact form.
Upgrade your aquarium with the reliable modular performance of the EHEIM Aquaball Filter.
Enjoy cleaner water, better circulation, and healthier fish—every day.
