Exo Terra Moss Ball, Water Clarity and Odor Control for Aqua-Terrariums, PT2478, Green

The Exon Terra Moss Ball helps provide crystal clear water and reduce odors. Designed to resemble its natural counterpart, the Exon Terra Moss Ball contains a special absorption resin that helps reduce many of the compounds that encourage unsightly organic matter accumulation.\n\by absorbing and trapping phosphate, nitrite and nitrate within its core, the Exon Terra Moss Ball helps to create ideal conditions for animals and plants and makes aqua-terrarium maintenance easy.