Aquarium Semicircle Tube Surface Suction Cup Protein Oil Skimmer Set Black

Descriptions:

• By the inflow of surface water into the fillter,it can clean the water oil layer quickly.
• Semicircle design, does not occupy the space.
• Inlet Valve allows easy adjusting water flow and self-floating design.
• Suitable with small tank hang-on filters and canister filters.
• Improve dissolved oxygen, raise the light penetration and help the photosynthesis of water plants.