Substrat Pro Biological Filter Media - 1 L Filter Media 10 in (25 cm) round

10 in (25 cm) round tube

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

Experience the wonder of their very own aquatic creation

Bio-Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate while absorbing a powerful mix of nutrients

Ideal for aquariums up to 25 US Gal / 100 L

Substrat Pro Biological Filter Media - 1 L Filter Media 10 in (25 cm) roundSubstrat 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