Protein Skimmer WG-318B 7.5W 100-150 :
These internal aquarium fish tank protein skimmers are designed to be fully integrated saving on the space required for a medium sized protein skimmer with pump attachment. They can be used within your fish tank itself or in an external filtration system like a sump.
The WG-318 skimmers are primarily designed for use with small marine nano aquariums and include detachable needle wheel impeller venturi separation pumps.
WG-318B model includes a large suction pad with lever to enforce the suction, as well as a bracket that can be installed in place of the suction pad allowing you to hand the skimmer from the rim of your fish tank.
Please note the pump inlet on these skimmers has approximately an 8mm diameter opening. Please assess the inhabitants of your fish tank in case they may be small enough to be sucked in. You can cover the inlet with some net or foam but this may reduce its performance slightly.