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Effective filtration is the foundation of a healthy aquarium. Filter media is a key component of a water purification system – it traps waste, neutralizes harmful substances and provides a suitable environment for beneficial bacteria. Whether you use an internal or external filter, choosing the right combination of filter media is crucial.
Types of filter media and their function
In the Discus Store you will find a wide range of mechanical, biological and chemical filter media suitable for all types of aquarium filters:
Mechanical filter media – the first line of defense
These media capture large particles such as:
- Uneaten food
- Fish waste
- Organic debris
The most commonly used materials include sponge pads, filter wool and cartridges, which keep the water visually clean and prevent other filter media from clogging.
Biological filter media – the heart of the nitrogen cycle
Biological filtration is extremely important for the breakdown of ammonia and nitrite. These media provide a surface for beneficial bacteria to thrive in, which supports a healthy biological environment.
Most popular media:
- Ceramic rings
- Bio balls
- Porous rocks and substrates
Suitable for external and canister filters, as well as high-load nano systems.
Chemical filter media – purification of the invisible
This type of media removes dissolved toxins, bad odors and discoloration of the water. They are mainly used for final purification and control of water parameters.
Examples:
- Activated carbon – absorbs organic pollutants
- Zeolite – reduces ammonia levels
- Phosphate absorbents – algae control by removing phosphates
- Nitrate resins - to control and maintain lower NO3 levels
How to choose the right filter media?
The choice depends on:
- Type of filter (external, internal, sponge, canister)
- Volume and inhabitants of the aquarium
- Needs of the aquascape (plants, fish, corals)
The combination of different types of media in the correct order (mechanical → biological → chemical) guarantees the highest efficiency.
Maintenance tips
- Clean mechanical media every 1-2 weeks
- Rinse biological media in aquarium water to avoid killing bacteria
- Change chemical media every 4-6 weeks, according to the manufacturer
Bet on quality from proven manufacturers
In our online store you will find filter media from leading brands, suitable for all types of filters - Eheim, Aquael, Hagen, Hydor, JBL and others.
Get crystal clear water today
Check out our "Filter Media" category and choose the right products for your aquarium needs. If you are not sure what to choose – contact us for a free consultation!
