Aquatic Experts 1.5" Large Bio Balls for Ponds – 100-Count Media, Treats Up to 330 Gallons (Mesh Bag Included)

Aquatic Experts 1.5\" Bio Balls for Ponds

Outdoor ponds and waterfalls rely on clean water and balanced biology. These oversized 1.5 inch bio balls maximize surface area to support beneficial bacteria in your filters, helping you maintain clarity while you enjoy a natural water feature.

Designed for high-flow systems, the open spine lets debris pass through rather than clinging, which helps keep the filtration running when flow is strong. The solid core avoids a sponge center that can trap gunk, promoting steady water movement.

Key benefits at a glance

• Large surface area: each ball provides nearly 2 square feet of contact for beneficial bacteria.
• Size and capacity: a 100-count pack treats up to 330 gallons; follow the recommended 30 balls per 100 gallons for sizing.
• High-flow ready: open spine structure minimizes clogging and reduces maintenance time.
• Durable, safe material: made from 100% polypropylene that resists degradation in outdoor environments.
• Flexible installation: use loosely in your filter or place inside the included 10\" x 12\" mesh bag for a tidy setup.
• Sponge-free core: no center sponge to trap organics, helping keep water moving freely and ponds clearer.
• Made in the USA: a homegrown product designed for koi ponds, freshwater ponds, aquaponics, and large sumps.

Real-world use and setup tips

For koi ponds and freshwater displays, position the bio balls within larger filter chambers or sump systems. Start with approximately 30 balls per 100 gallons, then adjust based on pond bio-load and water flow. The mesh bag option offers a compact, contained setup for easier handling and cleaning.

The 100-count bag is a scalable option for mid-size to larger ponds. With a durable polypropylene construction, these media stay intact season after season, minimizing replacement frequency and allowing you to focus on enjoying your water feature.

Product details at a glance

• Material: 100% polypropylene
• Diameter: 1.5 inches
• Includes: 100 bio balls and a 10" x 12" mesh bag
• Applications: koi ponds, freshwater ponds, aquaponics, and large aquarium sumps
• Origin: Made in the USA