SunSun HJ-311B | HJ-411B Internal Aquarium Filter | 300 L/H Submersible Fish Tank Filter | SMA

The SunSun HJ-311B and HJ-411B Internal Aquarium Filters are compact, fully submersible filtration units designed to provide water circulation and filtration inside the aquarium. Both models offer a maximum flow rate of approximately 300 L/H with 2W power consumption, making them suitable for smaller aquarium setups where compact filtration is preferred.

The HJ-311B features adjustable water flow, allowing aquarists to regulate circulation according to the aquarium’s requirements, while the HJ-411B provides a straightforward filtration and circulation setup. The filters can support mechanical and biological filtration through their sponge-based media.

Both models are designed for easy installation inside the aquarium and can be secured using suction cups. Always ensure the unit is fully submerged before switching it on, and clean the filter media and impeller regularly to maintain performance.

Key Benefits

• Helps remove debris and supports better day-to-day water clarity.
• Supports healthy water movement and filtration in aquarium systems.
• Available models should be selected according to tank size, fish load and flow needs.

Usage Guide

Install according to the product design and clean filter media using aquarium water when required. Avoid over-cleaning biological media because it supports beneficial bacteria.

Buying Note

Choose the correct size, model or quantity before checkout. For best results, match the product with your aquarium size, livestock type and maintenance routine.