Meet EHEIM Substrat Pro: Biological Filter Media for Consistent Aquarium Filtration EHEIM Substrat Pro is crafted from highly porous, artificial sintered glass, delivering an open structure that encourages water to pass through gently while creating ample surface area for beneficial life in your filter

The result is a filtration media that blends into the rhythm of daily tank care, helping you maintain a clean and balanced aquatic environment without constant maintenance handoffs

Key benefits at a glance Sintered pearl-shaped glass with a notable open structure supports steady water penetration and filtration performance

Impressive surface area—about 1800 sq ft per gallon—providing ample space for microbe colonization and efficient nutrient processing

Longer maintenance intervals possible: reuse with gentle rinsing and staggered to fit your schedule

Designed for compatibility with all EHEIM filters (Classic, Ecco, Pro 3, Pro 3e), simplifying upgrades and maintenance

How to use and maintain Substrat Pro Rinse lightly with aquarium water to reuse for 1 to 3 months between cleanings

Replace the media every 3 to 6 months to preserve filtration effectiveness and flow

In -world tanks, Substrat Pro helps create a stable filtration core that supports clear water and reliable flow

It’s a practical option for hobbyists who value a maintenance rhythm that aligns with their routine, rather than a fixed schedule

The 2-liter package provides enough media to cover a range of standard filter configurations, and the glass material adds a tangible sense of durability and consistency to your filtration setup

Why consider Substrat Pro for your aquarium

Beyond its porosity and surface area, this media’s design aims to optimize water throughflow within the filter housing

The combination of open structure and robust surface area can foster beneficial colony establishment while enabling you to plan maintenance around your preferences rather than reactive care

follow your specific tank needs and filtration guidance when integrating new media into your system

FAQ Q: What are EHEIM Substrat Pro media made from

A: Sintered glass with high porosity and large surface area supports filtration

Q: How often should Substrat Pro be rinsed or replaced

A: Rinse lightly with aquarium water every 1–3 months; replace every 3–6 months