Product details
Package Dimensions: 7.4 x 6.34 x 0.87 inches; 4.66 ounces
Item model number: QWL35-BiochemicalBall-New
Date First Available: July 22, 2025
Manufacturer: RAINFLOW
ASIN: B0FJDR1YVJ
Best Sellers Rank: #36,321 in Pet Supplies (See Top 100 in Pet Supplies) #381 in Aquarium Filter Accessories
Customer Reviews: 4.9 4.9 out of 5 stars
11 ratings
About this item
Enhanced Filtration Structure: This 100-piece set of black pond bio balls measures approximately 0.7 inch in diameter and is designed to optimize biological filtration. Each ball features an internal cotton center to increase surface area, making them effective filter media for managing waste in both freshwater and saltwater aquariums
Sturdy Build with Clean Design: This bio balls bulk set is made from high-density polymer material, designed for long-lasting use in aquatic systems. Ideal for use in fish tank filters, each piece features an inner cotton core that promotes water flow without debris buildup
Minimal Maintenance Needed: The cotton-core structure of this pond filter media helps prevent excessive debris accumulation. Simply rinse before first use and place directly into your pond filter or aquarium filtration compartments for efficient, low-maintenance performance
Widely Compatible Setup: This aquarium filter media is designed to fit seamlessly into various systems, including canister filters, sump tanks, pond filters, and aquaponic units. It's ideal for use in koi ponds, reef tanks, planted aquariums, or any fish tank setup across freshwater and saltwater environments
Flexible Use: This 100-count pack is designed for versatile use, allowing you to arrange the bio balls freely based on your specific filtration setup
