Very lightweight and porous for removing Ammonia, Nitrite, and Nitrate
- The perfect substitute for Live Rock- safe, effective, and economical.
- Primarily designed to provide deep anaerobic zones for de-nitrification.
- Great for aquascaping and as a substrate to grow corals.
- Small Rock Approximate Size - 6"x4"x3"
- Medium Rock Approximate Size - 7"x6"x5"
- Additional Information
- Product Specs