Substrat Pro Biological Filter Media - 1 L Filter Media You can determine species sensitivity

You can determine species sensitivity by observing fish during use

10 in (25 cm) round tube

Performing routine cleanings and media changes couldn't be easier thanks to the Nano's easy-open filter head

StressGuard™ will reduce stress and ammonia toxicity whenever handling or transporting fish

Substrat Pro Biological Filter Media - 1 L Filter Media You can determine species sensitivitySubstrat Pro Biological Filter Media 1 L The one liter container of Eheim Substrat Pro Biological Filter Media is the perfect addition to any filter basket for freshwater or saltwater ecosystems. The media is a highly porous filter material made of splintered glass, and provides a surface structure with a colonisable area of approximately 450 m per litre and offers excellent colonisation conditoins for essential purification bacteria. This standard