Sobo WP-618H Slim Aquarium Hang-On-Filter (5W) – 280 L/H

Sobo WP-618H Slim Aquarium Hang-On-Back (HOB) Filter (5W) – 280 L/H Compact External Filter

Keep your nano tank or small aquarium crystal clear without sacrificing valuable swimming space. The Sobo WP-618H Slim Hanging Filter is an ultra-thin, highly efficient Hang-On-Back (HOB) filtration system designed for modern aquatic setups. Available now at www.onyxaqua.com, this compact powerhouse delivers a steady 280 Liters per hour (F.MAX) flow rate while consuming only 5 Watts of energy.

Designed to sit discreetly on the outside rim of your glass, the WP-618H provides professional-grade water polishing for both freshwater and marine aquariums while maintaining a minimalist aesthetic.

Key Features & Benefits

• Comprehensive 3-in-1 Filtration: Equipped with a complete "mechanical, chemical, biological filtration system" to trap floating debris, absorb impurities, and foster beneficial bacteria for a perfectly balanced ecosystem.

• Ultra-Slim Profile: The space-saving "Slim Hanging Filter" design hugs the back of your aquarium. It’s the perfect solution for desktop tanks, aquascapes, and setups where internal space is at a premium.

• Adjustable Intake & Surface Skimmer: The included modular intake tubes can be adjusted to fit the depth of your tank. It also features a surface skimmer attachment to automatically remove oily surface films, improving oxygen exchange and light penetration.

• Flow Control Valve: A conveniently located dial on the intake tube allows you to easily adjust the water flow, making it gentle enough for Bettas, shrimp, and delicate planted tanks.

• Whisper-Quiet & Safe: Built with a premium motor that operates silently. It also boasts an IPX8 waterproof rating, ensuring maximum electrical safety for you and your aquatic pets.

• Easy Maintenance: Designed with the user in mind—"it is easy to clean the filter screen." Simply lift the lid to slide out the filter cartridge for a quick, mess-free rinse or replacement.

Technical Specifications

Installation & Maintenance Pro-Tips

1. Always Prime Before Use: HOB filters are not self-priming. Before plugging the unit into the wall, pour aquarium water directly into the filter box until it spills over the lip. This prevents the motor from running dry and burning out.

2. Skimmer Adjustment: Ensure the floating crown of the surface skimmer attachment bobs gently at the water's surface. If it sinks, adjust the flow or check for trapped air.

3. Routine Cartridge Care: To maintain the 280 L/H flow rate, rinse the internal filter media in a bucket of used aquarium water every two weeks. Never use untreated tap water, as the chlorine will destroy your beneficial bacteria colony.

4. Drip Loop Safety: Always ensure your power cord dips below the electrical outlet in a "U" shape (a drip loop) to prevent water from traveling down the cord into the socket.