🌊 Dive into Clarity with Biohome Ultra! Crafted from high-quality sintered glass, ensuring durability and sustainability. Elevate your aquatic environment with 2 lbs of premium bio filter media. Perfectly suited for trickle towers, shower filters, sumps, and more—tailor your setup! Experience superior filtration with an ultra-porous structure designed for optimal water clarity. Be part of a community that values pristine water quality and thriving aquatic life. Premium sintered glass 2.5" size Extremely porous The Ultra, Large-Sized Aquarium Bio Filter Media (2 LBS) consists of approximately 20 pieces of premium sintered glass media, each measuring 2.5 inches in size and 1 inch in diameter. Its highly porous structure is designed to enhance filtration efficiency in various aquarium setups, including trickle towers, shower filters, and sumps.