Bio Rod Biological Filter Media

Bio Rods are a biological filter media designed to harbour massive amounts of beneficial bacteria and break down toxic ammonia in fish

Four sizes available - Single, 5/20/50 pieces

Made from premium quartz and enriched with natural minerals, H2o Pro Bio Rods deliver reliable, long-term biological filtration. The high-quality material is rich in essential trace elements that support the growth of both nitrifying and anaerobic bacteria—helping to maintain consistently clean, balanced water.

Excellent Water Flow & Oxygenation

The porous structure allows water to pass through easily while increasing oxygen levels, creating an ideal environment for beneficial bacteria to thrive—promoting healthier, more vibrant aquatic life.

Powerful Absorption & Purification

Efficiently traps waste, uneaten food, and harmful compounds like ammonia and nitrite. The result? Cleaner water, fewer odors, and a healthier tank environment.

Durable & Residue-Free

Fired at 1000°C for strength and purity, these bio rods are built to last. They won’t break down or release unwanted particles—just reliable performance, cycle after cycle.

Maximised Surface Area

The hollow-core design provides an expanded surface for bacterial colonisation, boosting biological filtration and helping maintain crystal-clear water.

The Importance of Quality Filter Media

Quality filter media plays a crucial role in maintaining the health and wellbeing of aquarium fish, as well as the overall stability of the tank environment. In essence, filter media acts as the primary system for removing physical debris, toxins, and other harmful substances from the water. To achieve this, it relies on a combination of different filtration types—mechanical, biological, and chemical—each serving a distinct purpose.

To begin with, mechanical filter media captures visible debris such as uneaten food, waste particles, and plant matter. By trapping these materials early, it prevents them from decomposing and polluting the water, which could otherwise create hazardous conditions for fish.

Next, biological filter media supports colonies of beneficial bacteria by offering a large surface area on which they can thrive. These bacteria are vital to the nitrogen cycle, a natural process that converts toxic ammonia and nitrites—byproducts of fish waste—into less harmful nitrates. Consequently, effective biological filtration helps maintain water quality and reduces the risk of fish stress and disease. Without it, toxins can quickly accumulate, putting the entire aquatic ecosystem at risk.

Additionally, chemical filter media, such as activated carbon, plays a key role in absorbing dissolved impurities, unwanted odours, and residual chemicals. This further polishes the water, ensuring it remains clean, clear, and safe for all aquatic life.

Altogether, these filtration methods work in harmony to maintain optimal water conditions. By using high-quality filter media, aquarists can significantly reduce the chances of disease outbreaks and environmental stress, while also supporting vibrant colours, healthy growth, and the overall wellbeing of their tank inhabitants.

More Filter Media