Description
Blue Pet BLH-402 Hang-On Filter
The Blue Pet BLH-402 Hang-On Filter is a slim, external HOB (hang-on-back) filter designed for medium-sized aquariums. It provides 3-stage filtration – mechanical, biological, and chemical – to keep water crystal-clear and healthy for fish. With its adjustable flow control, quiet motor, and space-saving design, it is an excellent choice for both beginner and advanced aquarists.
🌊 Key Features
✅ 3-in-1 filtration system – Mechanical sponge, biological bio-media, and chemical carbon for complete water purification.
✅ Compact hang-on design – Saves internal tank space, easy to install and maintain.
✅ Adjustable flow rate – Gentle flow for shrimp and bettas, stronger flow for community tanks.
✅ Quiet operation – Runs smoothly without disturbing fish or the room environment.
✅ Easy to clean & maintain – Washable sponge and replaceable cartridge design.
✅ Energy-efficient motor – Provides powerful circulation with low power usage.
🐠 Suitable For
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Tank Size: 100L .
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Fish Types: Guppies, Mollies, Bettas, Tetras, Shrimp, Goldfish, and small community setups.
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Aquarium Types: Freshwater, Planted, Shrimp tanks, Betta tanks, Breeding setups.
⚙️ Specifications
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Model: Blue Pet BLH-402
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Type: Hang-on-back filter (HOB)
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Filtration: Mechanical + Biological + Chemical
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Flow Rate: 400 L/H
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Power Consumption: 6W
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Tank Size: ~ 100L
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Color: Black
🔧 How to Install
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Hang the filter securely on the back of your aquarium.
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Fill the filter box with aquarium water before switching on.
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Insert the intake pipe fully into the tank water.
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Switch on and adjust the flow control to the desired level.
🧼 Maintenance
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Rinse sponge and filter cartridge every 2 weeks in aquarium water.
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Replace carbon regularly for effective chemical filtration.
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Clean impeller chamber once a month to maintain strong flow.
📦 What’s in the Box
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1 × Blue Pet BLH-402 Hang-On Filter
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1 × Filter cartridge (sponge + carbon)
✅ Why Choose Blue Pet BLH-402 Hang-On Filter?
The Blue Pet BLH-402 offers stronger filtration power than the BLH-401, making it ideal for medium aquariums and heavier bioload setups. It combines quiet performance, easy maintenance, and efficient 3-stage filtration to keep your aquarium water clear and safe for all aquatic life.
👉 A reliable choice for aquarists seeking a balance of compact design and higher performance.

