Fluval C2 Hang On Filter size-110g it should be left on

it should be left on at all times to constantly filter your fish's water

improved water clarity and quality

Includes mounting bracket with screw clamp fixture

as well as a fruit & vegetable extract

not possible with other diets

Fluval C2 Hang On Filter size-110g it should be left onEngineered to create superior water quality, the Fluval C2 Power Filter provides extensive 5 stage filtration two mechanical, one chemical and two biological stages for outstanding results. The Power Filter is designed to provide maximum surface area and optimum dwell times in all stages of the filtration process. Rigorous 2 stage mechanical filtration is performed by a thick layer of poly foam that effectively traps large and fine debris. The foam