Aquarium Quartz Bio Filter Balls 200g/500g – Fish Tank Filter Media

Crystal-Clear Water Starts with the Right Filter Media

Give your fish the clean, healthy environment they deserve with these Aquarium Quartz Hollow Bio Filter Balls. Designed for biological and mechanical filtration, these porous quartz balls provide a massive surface area for beneficial bacteria to colonize — naturally breaking down ammonia, nitrites, and other harmful waste in your tank. Available in 200g and 500g options to suit tanks of all sizes.

Made in Mainland China.

Why Choose Quartz Bio Filter Balls?

• 🐟 Superior Biological Filtration: Hollow-core design maximises surface area, allowing beneficial nitrifying bacteria to thrive and keep water parameters stable.
• 💧 Mechanical Pre-Filtration: Traps floating debris and particulates before they reach finer filter media, extending the life of your entire filtration system.
• 🔄 Reusable & Long-Lasting: Durable quartz material can be rinsed and reused repeatedly — simply rinse with tank water (never tap water) to preserve your bacterial colony.
• ⚖️ Two Size Options: Choose 200g for smaller tanks or 500g for larger aquarium setups — perfect for freshwater and marine aquariums alike.
• 🌊 Versatile Compatibility: Works with canister filters, hang-on-back filters, sump filters, and wet/dry filter systems.
• 🚫 Chemical-Free: No harmful chemicals or additives — completely safe for all fish, shrimp, corals, and live plants.

How to Use

1. Rinse the bio balls briefly with aquarium water (not chlorinated tap water) before first use.
2. Place the quartz bio balls inside your filter media basket, sump, or filter bag.
3. Allow 4–6 weeks for beneficial bacteria to fully colonise the media.
4. For maintenance, rinse gently in old tank water during water changes — never replace all media at once to preserve your bacterial colony.

Product Specifications

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For more information on maintaining a healthy aquarium ecosystem, visit the USGS Water Quality Information resource.

Learn more: Aquarium filter

Frequently Asked Questions

Q: How many quartz bio filter balls do I need for my aquarium?

A: As a general guide, the 200g pack is suitable for tanks up to 50 litres, while the 500g pack is recommended for larger aquariums up to 150 litres. For heavily stocked tanks or those with large fish, using more media will support a stronger biological filter colony.

Q: Can I use these quartz bio balls in a saltwater (marine) aquarium?

A: Yes! These quartz hollow bio filter balls are compatible with both freshwater and saltwater/marine aquarium setups. The inert quartz material will not alter your water chemistry or pH levels.

Q: How often should I clean the aquarium bio filter balls?

A: Clean the bio balls only when you notice a significant reduction in water flow through your filter — typically every 3–6 months. Always rinse them gently in a bucket of old aquarium water, never under tap water, to avoid killing the beneficial bacteria colonies living on the media.

Q: Will these bio balls work with any type of filter?

A: Yes. These quartz bio filter balls are designed to be versatile and will work with canister filters, hang-on-back (HOB) filters, sump filters, wet/dry trickle filters, and internal power filters — making them a flexible choice for almost any aquarium filtration setup.