Maifan Ring

Enhance your aquarium or pond filtration system with the Mountain Tree Maifan Ring, a premium mineral-rich ceramic bio media designed to improve biological filtration, stabilize water quality, and support healthier aquatic environments. Featuring a patented oblique section structure, the Maifan Ring evenly distributes water and oxygen throughout the media to maximize beneficial bacteria growth and filtration efficiency.

Manufactured from natural mineral materials, the Maifan Ring releases beneficial trace elements such as potassium, calcium, magnesium, iron, zinc, sodium, and copper that help support fish health and overall aquatic ecosystem balance. Its porous ceramic construction provides an ideal habitat for nitrifying bacteria, allowing the media to efficiently break down harmful ammonia and nitrates while improving water clarity and stability.

The hollow oblique design promotes excellent water flow and oxygen exchange while helping prevent clogging and dead zones within the filter. Conveniently packed in necklace-style strings, the media is easy to install, remove, and maintain in canister filters, sump systems, bakki showers, koi ponds, freshwater aquariums, and marine filtration systems.

Whether you are maintaining a high-performance koi pond or a planted aquarium, the Mountain Tree Maifan Ring provides long-lasting biological filtration and mineral supplementation to help create cleaner, clearer, and healthier water conditions for fish and aquatic life.

Key Features:

• Premium mineral-rich ceramic bio media
• Patented oblique section structure improves water and oxygen flow
• Encourages beneficial bacteria colonization
• Helps reduce ammonia and nitrate buildup
• Releases beneficial trace minerals for aquatic health
• Porous ceramic structure improves biological filtration
• Helps stabilize water conditions and pH balance
• Necklace-style packaging for easy maintenance
• Ideal for koi ponds, aquariums, bakki showers, and sump systems
• Durable long-lasting filtration media

• Free Shipping is valid for orders with a subtotal exceeding $199 and all orders will be shipped via UPS. Items purchased for delivery after 3pm will ship the following day. Items purchased for delivery after 3pm on Friday will ship Monday.
• Koi Fish and Live Plants only ship Monday- Wednesday. For orders placed after 3pm on Wednesday, the order will be shipped the following Monday.
• For Motor Freight (LTL) Shipments, oversized or heavy items unsuitable for traditional parcel delivery are not eligible for free shipping. These items will be dispatched through a motor freight carrier, as indicated on the product page. Once the carrier receives your order, they will reach out to arrange a delivery time. An individual aged 18 or older must be present to sign for the delivery.
• You may return or exchange an unused or unopened item for a refund (excluding shipping and handling charges) within 30 days of purchase. Following 30 days, the item may be returned in exchange for a store credit. Return shipping cost are covered by the customer and some items returned will result in a restocking fee. Please click here to review our returns policy.
• To receive a refund for Live Plants, you must email ecommerce@fitzfishponds.com with the image of the item in the original packaging for review.
• To ensure Live Plants have the best chance to arrive without issue, it is recommended to select next day air or two day shipping options.
• Used chemicals and fish food are not returnable. In addition, all sales on Japanese Koi are final and non-refundable. Should you have any questions or concerns when your fish arrive, please call 908-420-9908.