Atlantic Bio-Rocks Biological Filter Media – 0.5 Cubic Ft

Boost the efficiency of your pond filtration system with Bio-Rocks Biological Filter Media – 0.5 Cubic Ft. Specially engineered to maximize surface area, these lightweight, highly porous stones provide the ideal environment for beneficial bacteria colonization. Designed for biological filtration systems, Bio-Rocks promote healthy water conditions by supporting the natural breakdown of organic waste, ammonia, and nitrites.

Whether you're maintaining a koi pond, garden pond, or water garden, Bio-Rocks offer exceptional performance in both trickle filters and pressurized biofilters. Unlike plastic bio-media, these natural stone pieces offer superior durability and resistance to clogging. With an irregular shape and rough texture, they encourage deep bacterial penetration, which results in more stable water quality over time.

0.5 cubic feet of Bio-Rocks covers approximately 1,000 square feet of biological surface area, making it an effective and space-efficient choice for pond owners who demand reliability and results. The media is pH-neutral and safe for fish and aquatic plants, ensuring compatibility with various water features.

Features

High Surface Area
Promotes beneficial bacteria growth for biological filtration.

Natural & Durable
Irregular, porous structure resists breakdown and clogging.

pH Neutral
Safe for fish, aquatic plants, and long-term use.

Compatible with Most Filters
Works with waterfall filters, pressurized systems, and more.

Compact & Efficient
0.5 cu. ft. provides large bacterial colonization space without taking up much room.