20Pcs 16mm Aquarium Bio Balls – Fish Tank Filter Media
20Pcs 16mm Aquarium Bio Balls – Fish Tank Filter Media
20Pcs 16mm Aquarium Bio Balls – Wet/Dry Fish Tank Filter Media
Keep your aquarium water crystal clear with these 16mm Bio Balls — a simple, effective biological filter media designed for freshwater and marine fish tanks. Each ball features an inner bio-sponge core that dramatically increases surface area, allowing beneficial bacteria to colonize and thrive, naturally stabilizing your water quality without the need for harsh chemicals.
Made in Mainland China.
Why Choose These Bio Balls?
- Maximized Surface Area: The inner bio-sponge insert provides an ideal environment for beneficial bacteria to grow and establish a healthy biological cycle in your tank.
- Long-Lasting & Low Maintenance: Bio balls do not require regular replacement — simply rinse gently with water from your established aquarium if excessive build-up occurs.
- Versatile Compatibility: Suitable for wet/dry filters, canister filters, sumps, and works alongside air pump systems for a range of freshwater and marine aquarium setups.
- Water Quality Stabilizer: Supports a balanced aquatic ecosystem by promoting the growth of beneficial bacteria that help keep ammonia and nitrite levels in check.
- Portable & Compact: Lightweight 16mm design makes them easy to place, reposition, or move between tanks as needed.
Specifications
- Quantity: 20 Bio Balls per pack
- Diameter: 16mm
- Filter Type: Biological / Wet & Dry
- Application: Freshwater & Marine Aquariums, Sumps, Canister Filters
- Material: Plastic outer shell with inner bio-sponge
- Model Number: PHG3225
Package Contents
- 20 x 16mm Bio Balls
Note: Due to manual measurement, there may be a size deviation of 1–3mm. Slight color differences may occur due to screen display settings.
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Learn more: U.S. Fish and Wildlife Service
Frequently Asked Questions
Q: How do aquarium bio balls work as filter media?
A: Bio balls act as a biological filter media by providing a large surface area — especially through the inner bio-sponge — for beneficial bacteria to colonize. These bacteria help break down harmful waste compounds in your fish tank water, naturally stabilizing water quality and supporting a healthy aquatic environment for your fish and plants.
Q: How often do I need to replace these 16mm bio balls?
A: These bio balls are designed to be long-lasting and do not need regular replacement unless physically damaged or destroyed. If you notice excessive build-up, simply rinse them gently using water taken directly from your established aquarium to preserve the beneficial bacteria colonies — avoid using tap water, as chlorine can harm the bacteria.
Q: Are these bio balls suitable for marine (saltwater) aquariums?
A: Yes! These 16mm bio balls are compatible with both freshwater and marine (saltwater) aquarium setups. They work effectively in wet/dry filters, sump systems, and canister filters commonly used in marine tank configurations.