Nano Aquarium Internal Filter WP-850F | 4W 400L/H Biological, Mechanical Filtration for Freshwater & Saltwater Fish.

【4-in-1 Advanced Filtration System】 – Combines biological, mechanical, chemical, and oxygenation functions to keep water crystal clear, remove toxins, and maintain a healthy ecosystem for fish, shrimp, and plants. 【Perfect for 1Ft Tanks】 – Powerful 400L/H flow rate and 4W energy-efficient motor ensure optimal water circulation and filtration for tanks up to 50 liters, ideal for freshwater and saltwater aquariums. 【Adjustable Flow & Multi-Directional Outlets】 – Customize water flow intensity and direction with the rotatable spray bar and flow control knob to suit delicate fish, plants, or high-current species. 【Ultra-Quiet & Low Vibration】 – Engineered with noise-reduction technology for silent operation (under 30dB), perfect for bedrooms, offices, or noise-sensitive environments. 【Easy Installation & Maintenance】 – Compact, space-saving design with suction cups for quick setup. Includes replaceable filter media and pre-filter sponge for hassle-free cleaning—no tools required!