Description
SOBO WP-628H Hanging Filter
The SOBO WP-628H Hanging Filter is a slim, efficient, and budget-friendly hang-on-back (HOB) filter designed for aquariums up to 100 litres. It provides mechanical, chemical, and biological filtration with quiet operation, making it an excellent choice for beginners and experienced fishkeepers alike.
🌊 Key Features
✅ 3-in-1 Filtration – Sponge (mechanical), activated carbon (chemical), and bio-media chamber (biological) ensure crystal-clear and healthy water.
✅ Adjustable Flow Control – Easy knob to regulate water flow for delicate fish or stronger circulation for active species.
✅ Surface Skimmer (Optional intake slot) – Helps remove floating debris, oil, and film from the tank surface.
✅ Compact Design – Slim body hangs neatly on the back of the aquarium, saving space inside the tank.
✅ Low Noise & Energy Efficient – Quiet motor with long-lasting performance.
✅ Easy Maintenance – Simple cartridge removal and sponge rinsing for hassle-free cleaning.
🐠 Suitable For
Tank Size: ~100 litres.
Fish Types: Guppies, Tetras, Mollies, Platies, Bettas, Shrimp, Snails, Dwarf Gouramis, and other small community fish.
⚠️ Not recommended for messy fish like Goldfish, Oscars, or Arowana (unless used as a secondary filter).
⚙️ Specifications
Model: SOBO WP-628H
Type: Hang-on-back filter
Flow Rate: 400 L/H
Tank Capacity: ~100 L
Power Consumption: 6W (energy-saving)
Filter Media Included: Sponge + Activated Carbon Cartridge
Upgradable Media: Ceramic rings, bio-balls, fine filter wool
🧱 Filter Media Setup (Recommended Order)
Coarse sponge (mechanical filtration)
Activated carbon cartridge (chemical filtration)
Ceramic rings or bio-balls (biological filtration upgrade)
Fine filter wool (optional – polishing water for extra clarity)
👉 For shrimp tanks, use a sponge pre-filter on the intake.
🔧 How to Install
Hang the filter on the back/side of the aquarium.
Place the intake tube inside the water (ensure fully submerged).
Fill filter box with a little tank water to help priming.
Plug in and switch ON – water starts circulating.
Adjust flow to match your tank and fish needs.
🧼 Maintenance
Clean sponge every 2–3 weeks in aquarium water (not tap water).
Replace activated carbon every 3–4 weeks for best results.
Rinse bio-media gently when clogged; never replace all at once.
Check impeller and intake pipe for blockages.
📦 What’s in the Box
SOBO WP-628H Filter body
Intake tube with strainer
Activated carbon cartridge
Sponge media (pre-installed)
Adjustable flow knob
✅ Why Choose SOBO WP-628H?
The SOBO WP-628H Hanging Filter is a reliable, affordable, and space-saving option for small to medium aquariums. Its adjustable flow and multi-stage filtration make it versatile for planted tanks, shrimp setups, and community aquariums up to 100L.
👉 A great choice for hobbyists who want an easy-to-use filter that delivers excellent water clarity and healthy conditions for fish.




