Lotus Root Nitro Ring 5L for Fresh Water (with 2 L size zip mesh bags)

Premium lotus root biological filter media for koi ponds, aquariums and compact filtration systems. Mountain Tree Fresh Lotus Root Nitro Ring is a high-performance biological filter media designed to support excellent water quality in koi ponds, garden ponds, aquariums and small filter systems. Featuring a super porous lotus root structure with an oblique-section design, this media helps maximise space for beneficial bacteria to colonise. The open, textured structure supports biochemical filtration by giving nitrifying bacteria a suitable surface to attach and grow. This helps support the breakdown of harmful waste compounds in the water, including ammonia and nitrite, contributing to a healthier and more stable aquatic environment. Supplied as a 5 litre pack, with each piece measuring approximately 45 × 28 × 20mm, Mountain Tree Fresh Lotus Root Nitro Ring is ideal for pond filters, aquarium sumps, canister filters, trickle filters and compact biological filtration systems. Why Use Mountain Tree Fresh Lotus Root Nitro Ring in Your Filter? Effective biological filtration is essential for maintaining healthy water quality in koi ponds, aquariums and stocked aquatic systems. Mountain Tree Fresh Lotus Root Nitro Ring helps create a stable environment for beneficial bacteria, supporting natural waste breakdown inside the filter. Using Mountain Tree Fresh Lotus Root Nitro Ring can help: Support beneficial bacteria colonisation Improve biological filtration efficiency Help break down ammonia and nitrite Support clearer and healthier water Maximise filter space in compact systems Encourage good water movement through the media Provide a rough surface for nitrifying bacteria to attach Support pond, aquarium and small filter stability The lotus root design helps water move through the media while providing internal and external surface area for bacteria to establish. Mountain Tree Lotus Root Nitro Ring Biological Media Mountain Tree Fresh Lotus Root Nitro Ring is designed as an advanced biochemical filter media for pond and aquarium filtration. Its super porous structure and oblique-section design help increase usable space inside the filter, making it a practical option for smaller filtration systems where biological capacity is important. The rough surface texture helps nitrifying bacteria attach and grow, supporting the development of a healthy biological filtration system. The lotus root-style internal hole structure also helps water pass through the media efficiently, improving contact between pond or aquarium water and the bacterial colonies living on the media. Suitable Filter Applications Mountain Tree Fresh Lotus Root Nitro Ring can be used in a range of aquatic filtration systems, including: Koi pond filters Garden pond filters Aquarium filters Small filter systems Canister filters Sump filters Trickle filters Shower filters Biological filter chambers Compact filtration systems Custom-built filters For best results, place the media in a filter section where water can flow evenly through and around the rings. Key Features of Mountain Tree Fresh Lotus Root Nitro Ring Premium biological filter media Lotus Root Nitro Ring II design Suitable for koi ponds, aquariums and small filters Super porous oblique-section structure Rough surface helps nitrifying bacteria attach and grow Helps maximise filter space Supports biochemical filtration Helps maintain healthier water quality Encourages good water movement through the media Special design for maximum filter efficiency Premium non-toxic material Supplied as a 5 litre pack Approximate media size: 45 × 28 × 20mm Mountain Tree Fresh Lotus Root Nitro Ring Size and Specification Product Media Size Pack Size Media Type Application Mountain Tree Fresh Lotus Root Nitro Ring 45 × 28 × 20mm 5 litres Biological filter media Koi ponds, aquariums and compact filter systems Mountain Tree Fresh Lotus Root Nitro Ring is supplied as a 5 litre pack, with each piece measuring approximately 45 × 28 × 20mm. Which Filter Setup Is This Media Best For? Koi Pond Filters Suitable for koi pond filter systems where additional biological media is required to support stable water quality. Garden Pond Filters A practical choice for garden pond filters where pond keepers want to improve biological filtration and support clearer water. Aquarium Filters and Sumps The compact ring structure makes this media suitable for aquarium filters, sump filters and biological filtration chambers. Canister Filters Can be used in media baskets or filter bags inside canister filters where water can flow evenly through the media. Small and Compact Filter Systems The design is especially useful for smaller filter systems where maximising biological filtration space is important. How to Use Mountain Tree Fresh Lotus Root Nitro Ring Rinse the media gently before first use to remove any loose dust or particles from handling and transport. Place the Lotus Root Nitro Ring media into a biological filter chamber, media basket, sump section or filter bag. Make sure water can flow evenly through and around the media without bypassing it. For best results, use after mechanical filtration so larger debris has already been removed before water reaches the biological media. Avoid packing the media too tightly, as good water movement and oxygen availability are important for effective biological filtration. How to Maintain Mountain Tree Fresh Lotus Root Nitro Ring Mountain Tree Fresh Lotus Root Nitro Ring is designed to support beneficial bacteria, so it should not be cleaned too aggressively. If cleaning is needed, rinse gently using pond or aquarium water rather than untreated tap water. This helps protect the beneficial bacteria living on and inside the media. Avoid using detergents, harsh chemicals or high-pressure cleaning methods, as these may damage the media or reduce the bacterial colonies needed for biological filtration. Important Information Rinse gently before first use Supplied as a 5 litre pack Approximate media size: 45 × 28 × 20mm Best used in a filter chamber, basket or media bag Do not pack too tightly, as water flow is important Avoid cleaning with untreated tap water where possible Do not use detergents or chemicals Biological media takes time to mature fully Performance will depend on stocking level, feeding rate, filter design and water flow Regular water testing is recommended in koi ponds, aquariums and stocked systems FAQ – Mountain Tree Fresh Lotus Root Nitro Ring What does Mountain Tree Fresh Lotus Root Nitro Ring do? It provides a porous surface area for beneficial bacteria to colonise, helping support biological filtration and the breakdown of waste in ponds, aquariums and filter systems. What size is the media? Each piece measures approximately 45 × 28 × 20mm. What pack size is supplied? This product is supplied as a 5 litre pack. Is it suitable for koi ponds? Yes, Mountain Tree Fresh Lotus Root Nitro Ring is suitable for koi pond filters, garden pond filters and biological filtration systems. Can I use it in an aquarium? Yes, it can be used in aquarium filters, sump filters and canister filters where suitable space and water flow are available. What is the lotus root structure for? The lotus root structure helps increase the available surface area for bacteria while allowing water to pass through and around the media efficiently. Does it help with ammonia and nitrite? Yes, once matured, beneficial bacteria living on the media help support the biological breakdown of ammonia and nitrite. Where should I place it in my filter? It is best used in the biological filtration stage after mechanical filtration has removed larger solids. How should I clean it? Rinse gently using pond or aquarium water when required. Avoid untreated tap water, detergents, chemicals or pressure washing.