Premium Grey Ceramic Rings Biological Filter Media (18x18mm)

Maintaining stable, crystal-clear aquarium water can be a constant battle, but establishing a strong biological foundation is the factual solution to preventing toxic ammonia and nitrite spikes. Upgrade your filtration system with our Premium Grey Ceramic Rings, available now at www.onyxaqua.com. Offered in convenient 250g, 500g, and 1000g (1kg) packs, these highly porous, speckled ceramic cylinders provide the perfect environment for beneficial bacteria to thrive and keep your aquatic ecosystem balanced.

Key Features & Benefits

• Maximum Surface Area: The deeply porous, sintered ceramic structure offers immense real estate for beneficial aerobic and anaerobic bacteria to colonize and break down fish waste.

• Hollow Cylinder Design: Measuring 18x18mm with a hollow center, these rings ensure optimal water flow and oxygen distribution, actively preventing dead spots and filter clogging.

• Chemically Inert: Completely safe for all freshwater and marine setups, these ceramic rings will not alter your pH or leach harmful chemicals into the water column.

• Highly Durable: Fired at high temperatures, this media resists crumbling and degradation, providing years of reliable biological filtration without needing frequent replacement.

• Customizable Quantities: Available in 250g, 500g, and 1000g packs, making it easy to buy the exact amount you need for a nano hang-on-back filter or a massive canister setup.

Product Specifications

Usage & Maintenance Guide

To maximize the biological efficiency of your new ceramic rings, follow these simple setup steps:

• Preparation: Always rinse the ceramic rings thoroughly in dechlorinated tap water before adding them to your filter to remove any residual dust from manufacturing and shipping.

• Placement: Position this biological media after your mechanical filtration (like sponges or filter floss). This prevents solid waste from clogging the microscopic pores where bacteria live.

• Safe Maintenance: Never wash biological media under raw tap water, as the chlorine will instantly destroy your beneficial bacteria colony. When necessary, gently swish the rings in a bucket of old aquarium water during a water change.