Bio Balls Ceramic Rings Set Nature Stable Aquarium Biological Filter Media for Fish Tank Aquarium

Feature: 1. Scope of Application: As a fish tank pond, aquarium filter medium, suitable for hanging filters, water tanks and other aquarium filtration. 2. Stabilize Water Quality: Effectively absorb particles and debris, solve the problem of muddy water, and stabilize the water quality of the aquarium. 3. Good Filtering Effect: The combination of four filtering materials has good effect. 4. High Quality Material: The material is made of sand, gravel and soil mixture, which is durable and natural filter material. 5. Decorative Function: The filter material adopts natural materials, which can be used as decorations for aquarium fish tanks. Specification: Item Type: 4 in 1 Filter Material Material: Sand, Gravel and Soil Mixture Specification: 12 Purpose: Filter Material for Fish Tank. Package List: 1 Pack x 4 in 1 Filter Material(12 Pieces)