Marineland Penguin Power Filter Cartridge Aquarium Filter Insert - Size C - 6 Pack Food and Water Accessories They are also well suited

They are also well suited for trimming ground cover which can be difficult with traditional shears

The outer shell is completely perforated for added breathability and sunlight

≈65 kcal/stick (7")

The black exterior finish is powder coated and fired for added luster and long life

this product is conveniently dishwasher safe and comes in assorted colors

Marineland Penguin Power Filter Cartridge Aquarium Filter Insert - Size C - 6 Pack Food and Water Accessories They are also well suitedEach preassembled rite size and emperor cartridge has a patented ribbed back that evenly distributes carbon for maximum water Highest grade magnum carbon removes more pollutants Fits penguin 170 200 330 & 350