The Blue Pet BLH-301 Aquarium Hang-On Filter (3W) is an ideal filtration solution for nano and small-sized aquariums. Its hang-on-back (HOB) design allows you to mount the filter externally, saving valuable space inside the tank while ensuring efficient water purification.

Equipped with a low power 3W motor, this filter delivers a steady flow rate of approximately 180 liters per hour, providing consistent water circulation and maintaining a clean aquatic environment. It effectively removes fish waste, leftover food, and fine debris, keeping the water clear and healthy.

The filter supports multi-stage filtration, including mechanical and biological processes that help break down harmful toxins and improve overall water quality. This reduces the need for frequent water changes and supports a stable ecosystem for your fish.

Its waterfall outlet design increases oxygen exchange and creates a gentle flow, making it suitable for delicate fish like bettas, guppies, and shrimp. The unit operates quietly, making it perfect for bedrooms, offices, or study areas.

Built with durable ABS plastic, the BLH-301 is lightweight, easy to install, and simple to maintain. Its compact size makes it especially suitable for tanks up to 1–1.2 feet in size.