Marina Slim Filter - Fish Tank Filters - 6 Cartridges Each S10 15 20 Bio Clear

Marina Slim Filter - Fish Tank Filters - 2 Packs of 3 Cartridges (6 Cartridges Total) - For Water Filter Models S10 15 20 - Fits all 3 Slim Filter Models - Bio Clear with Ceramitek. Best for Goldfish! Absorbs toxic ammonia and reduces fish stress! Used in Slim Filters for Keeping Water Clean & Clear! Fish Tank Water Filter Cartridges. Make sure to follow instructions on package before use. Ideal for Start Up Tanks! impeccable for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.