Fluval Lab Series Opti-Carb 175g A1504 Fluval Lab Series Opti-Carb High Capacity Ion Exchange Media 175g Customer Rating  N/A Add Review Ask Question $17.95 Qty : < > Product Description Reviews (0) (View All) Questions (View All) Fluval Lab Series Opti-Carb's mixture of ion-exchange and synthetic organic removal resins, and research grade carbon combine to create a powerful adsorbent water polishing media. Rapid reduction of dissolved organic matter, removal of proteins before they break down into toxic compounds, elimination of odors and discolorations can all be accomplished with Opti-Carb resulting in sparkling clear aquarium water. Features: Use as everyday filter media or for removal of specific toxic metals and organic compounds Does not affect pH, KH and general hardness Treats up to 189L (for larger tanks use multiple bagss) Formulated for reef aquariums Excellent fot freshwater and marine environments Suggested Media Placement: 105, 205, 305, 405, 104, 204, 304, 404, 103, 203, 303, 403: Mid, or Upper Level Media Baskets FX5: Bottom or Middle Media Baskets 150g Add Review There are no reviews for this product. Ask Question There are no questions asked for this product. Ok