Biological

21 results
starting at 8,90
€ 35,60 / l
In stock
  • High porosity biomedia for efficient biofiltration
  • Both external and internal macroporous surface area
  • Completely inert and will not breakdown
  • Grain: approx. 10 mm
starting at 13,90
€ 30,89 / kg
In stock, only 13 left
  • High-quality sintered glass rings
  • For intensive biological water clarifying
  • 1 litre has 1200 m2 effective surface
  • 5 times more effective as conventional tubes
starting at 7,90
In stock
  • Optimised bio-filter medium made from sintered glass
  • High bulk density due to spherical shape
  • Very dense colonisation of bacteria
  • Reusable
starting at 12,90
€ 19,85 / kg
In stock
  • High-quality sintered glass balls for clear water
  • Suitable for small filters
  • More intensive breakdown of ammonium and nitrite
  • 8 times more effective as conventional tubes
19%
off
In stock, only one left
  • Unique shape provides large surface
  • For clear water
  • Compatible for plants and microorganisms
  • B-stock
In stock, only 9 left
  • Original Fluval accessories for Flex/Evo/SPEC aquaria
  • Biological filtration
  • Easy to replace
starting at 7,90
€ 9,88 / l
In stock
  • Biological and mechanical filtration
  • Compatible with most external filters
  • 2 different container sizes
Biological filter media for the aquarium: The inconspicuous heroes in the background of water quality.

In the fascinating world of aquarium life, biological filter media play a crucial role in maintaining healthy and stable water quality. This article explains why biological filter media is so important and how it supports the biological balance in an aquarium.

Biological filter media are special materials used in the aquarium filter to provide vital biological filtration. Unlike mechanical filter media, which removes dirt and particles from the water, biological media focuses on the development of beneficial bacterial colonies.

The functioning of biological filter media is based on the colonisation of beneficial bacteria.

These are the so-called nitrifiers. They are part of the nitrogen cycle in the aquarium and are responsible for the breakdown of ammonia, nitrite and also nitrate. The bacteria are Nitrosomonas, Nitrospira, Nitrobacter, Nitrolancetus and Nitrosococcus. The excretions of fish and invertebrates, but also the fertilisation of aquatic plants, cause nitrates and ammonia to accumulate. This can also lead to the formation of the very toxic nitrite. Without the bacteria, the ammonia concentration would continue to rise and in the worst case poison the water. Biological filter media provides a surface for bacteria to colonise and convert these harmful compounds into less harmful nitrates.

Conclusion:

Biological filter media may be inconspicuous, but its importance to the health of an aquarium is extremely important. By creating a natural, biological filtration system, fish and plants are provided with a healthy and stable environment.