- Makes the water crystal-clear
- Removes brown discolourations by tannins reliably
- Can be regenerated uncountable times
- Suitable for all Juwel filter systems
- Reduces actively nitrate
- Acts on a biological basis
- Promotes the vitality of living beings
- For Juwel Bioflow filters
- Original Juwel spare part
- Quick and easy replacement
- High porosity biomedia for efficient biofiltration
- Both external and internal macroporous surface area
- Completely inert and will not breakdown
- Grain: approx. 10 mm
- Pre filter foam for Oase BioMaster
- Various pore sizes available
- Various set sizes available
- Doesn't rot under water
- Suitable for all Juwel filters
- Mechanical pre-filter
- Ensures a longer running time
- Made of residue-free polyester material
- Suitable for fresh and salt water
- For Juwel Bioflow filters
- Original Juwel spare part
- Quick and easy replacement
- Filter material permanently absorbing silicate
- Prevents diatom algae growth
- Absorbs also phosphate
- For freshwater and saltwater
- Ideal for Seachem Purigen
- Extremely durable under water, verrottet nicht
- Resistant against bleach
- With sealed seams
- Ideal for Seachem Seachem PhosGuard, MatrixCarbon, SeaGel, de*nitrate, Renew, Matrix and Zeolith
- Extremely durable under water
- Zipper resistant against bleach
- With stitched seams
- For all common Juwel filters
- Effective biological cleaning
- Highly porous filter material
- Long service life
- Suitable for fresh and salt water
- Filter sponge for Aquael ASAP internal filter
- Fine pore sponge
- Mechanical and biological filtration
- Available in three sizes
- Filter sponge for Oase BioMaster
- Various pore sizes available
- Doesn't rot under water
- Provides bacteria with a large surface to grow on
- Operates exclusively through nitrate-eliminating bacteria
- Without the use of chemical additives or exchange products
- Bacteria need no extra feeding
- Use in saltwater in combination with the active carbon
- Premium water conditioner in powder form
- Simple dosing
- Organic carbon
- Supports micro fauna of the aquarium
- Removes chlorine
- Porous material traps large and small dirt particles
- Good colonisation conditions for bacteria cultures
- Cleaning set for EHEIM external filters of the ecco pro, eXperience and professionel series
- Porous material traps large and small dirt particles
- Good colonisation conditions for bacteria cultures
- Prefilter pads are reusable, fine filter pads can be used once
- Porous material traps large and small dirt particles
- Good colonisation conditions for bacteria cultures
- Once a time suitable
- Optimised bio-filter medium made from sintered glass
- High bulk density due to spherical shape
- Very dense colonisation of bacteria
- Reusable
- Synthetic residue-free filter wool
- For freshwater and saltwater
- Washable
- Biological and mechanical filtration
- Captures coarse debris
- For fresh and marine water
- For various applications in the aquarium
- Ideal for use with filter media
- Durable and long-lasting material
- Original spare part from Oase
- For CrystalSkim skimmers
- High-quality parts
- Optimal fit
- Combi filter medium
- Fits most external filters
- High degree of cleaning
Filter media for your aquarium
In an aquarium, the filter has the important task of clarifying the water, reducing pollutants and supporting the ecosystem. For this purpose, various filter materials and filter types are used in aquaristics. The type of filter (internal filter, external filter, backpack filter) is rather unimportant since all filter media can be used in the different filter models. Basically, a distinction is made here between biological, mechanical and chemical filter media, which are available in our online shop from various renowned manufacturers.
Mechanical filter media are used to filter the smallest and slightly coarser dirt particles and suspended matter out of the water. The so-called prefilters are in principle mechanical filters and usually consist of filter sponge, filter foam, filter cotton, filter fleece or ceramic tubes. Especially fine meshed media like cotton or fleece are very efficient in the trapping of supended matter, but they'll also clog up rather quickly. They should therefore be cleaned and/or replaced regularly.
Biological filter media are materials that primarily provide a lot of surface area for sessile bacteria that degrade pollutants from the water as part of the nitrogen cycle. These materials are vital for a smoothly running ecosystem inside the aquarium. As a rule, they are very porous and often made of ceramics or sintered glass. Their porosity increases the surface of the filter medium and provides for a sufficient oxygen supply. Examples include the products Seachem Matrix, JBL Micromec or the Hel-X 13 BioMedium from Oase. Especially in aquariums with breeding ambitions and a dense population of fish, a sufficiently strong biological feeding is essential.
Chemical filter materials are filter media that actively alter the water values. These are often functioning as adsorber substances that are targeted to remove or bind certain elements dissolved in the aquarium water. Typical examples would be activated carbon, phosphate adsorber and nitrate remover.
Especially in aquascaping, the product Seachem Purigen is often used, which ensures crystal clear water and removes organic compounds. You want to learn more about filtration in planted aquariums in particular? Then we recommend reading this handy article in our Aquascaping Wiki.