ADA Bio Rio G
High-performance sintered glass filter media for stable, high-capacity biological filtration
Product Overview
ADA Bio Rio G is a premium filter media made from sintered glass, designed specifically for biological filtration in aquariums. Its highly porous structure offers a large surface area for beneficial bacteria to colonize, while its inert nature ensures it won’t alter your water’s pH or hardness.
The irregular shape of the media also helps maintain open interstitial spaces in filter beds, reducing clogging and allowing smooth water flow.
Key Features & Benefits
Extensive surface area for bacterial colonization
The sintered glass construction creates a porous matrix where nitrifying and other beneficial microbes can thrive.
Low clogging tendency & stable flow
Irregular pieces allow for gaps and better water passage, reducing the risk of compaction or channeling.
Chemically inert
Bio Rio G does not affect pH, KH or water hardness, making it suitable for long-term use in delicate setups.
Durable & dust-resistant
Unlike some ceramic or polymer media, sintered glass is dimensionally stable and less prone to breaking or producing fine dust.
Versatile application
Ideal for external filters, cannister filters, or any biological filtration zone. ADA recommends using it in combination with its carbon media (e.g. NA Carbon or Bamboo Charcoal) for a balanced filtration system.

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