Fluval U4 Filter Media - Poly/Clearmax Cartridge, 2-pack Size_168ltr The Fluval Replacement Canopy cover

The Fluval Replacement Canopy cover in White is suitable for the Fluval FLEX 57L aquarium kit

Size: 10 lb (4

Vitamins: Support immune function and overall vitality

however using a layer of chips over the recommended depth can quickly cause thermal blocking which can lead to high temperatures and potentially cause a hazardous situation

Several mounting options come standard

Fluval U4 Filter Media - Poly/Clearmax Cartridge, 2-pack Size_168ltr The Fluval Replacement Canopy coverFluval Poly Clearmax filter cartridge helps control green water and unsightly algae growth by adsorbing and trapping phosphate, nitrite and nitrate. It effectively produces crystal clear water, reduces odors, and creates ideal conditions for fish and plants. The filter cartridge helps reduce overall aquarium maintenance. It is ideal for freshwater and marine environments and designed for Fluvals U4 Underwater Filter. Contains 2 cartridges