Aquarium Filter Media Balls 200g - Boost Fish Tank Cleaning Efficiency. Transform Your Aquarium with This Premium Fish Tank Substrate, Crafted to Enhance and Sustain a Vibrant Aquatic Environment. Its Innovative Hollow Particle Design is Enriched with Natural Elements, Essential Minerals, and Trace Elements, All Working Together to Elevate the Health of Your Underwater Community. The PH-neutral Composition Ensures Optimal Water Conditions, Effectively Absorbing Ammonia and Harmful Toxins to Maintain Crystal-clear Water. The Unique Porous Structure Encourages the Growth of Beneficial Microbes, Fostering a Well-balanced Ecosystem and Offering Long-lasting Performance with Minimal Clogging. Features: - Hollow Particle Design for Enhanced Performance - Enriched with Natural Elements, Minerals, and Trace Elements - PH-neutral for Optimal Water Quality - Absorbs Ammonia and Toxins for Clearer Water - Porous Structure Boosts Beneficial Microbial Growth - Durable with Minimal Clogging Risk.