Description
SunSun HBL-701 Hang-On Filter
The SunSun HBL-701 is a slim, efficient, and reliable hang-on-back (HOB) filter designed for small to medium-sized aquariums. With its multi-stage filtration and quiet operation, it ensures crystal-clear water while saving space inside the tank.
🌊 Key Features
✅ Multi-stage filtration – Comes with sponge and activated carbon cartridge for mechanical & chemical filtration. Can be upgraded with ceramic rings, bio-balls, or filter wool for stronger biological performance.
✅ Slim & space-saving – Hangs neatly on the aquarium without occupying tank space.
✅ Adjustable flow rate – Gentle water flow for Betta, shrimp, or planted tanks; higher flow for small community tanks.
✅ Surface skimmer – Removes floating oil, dirt, and protein film from the surface for better oxygen exchange.
✅ Quiet operation – Runs smoothly with minimal vibration, suitable for bedrooms or study areas.
✅ Easy setup & maintenance – Quick installation, easy-to-clean filter box, reusable media.
🐠 Suitable For
Tank Size: ~150 litres.
Fish Types: Guppies, Tetras, Rasboras, Mollies, Platies, Swordtails, Bettas, Shrimp, Snails, and small Cichlids.
⚠️ Not recommended for very large or messy fish like Goldfish, Oscars, or Arowanas (unless used as a supplementary filter).
⚙️ Specifications
Model: HBL-701
Type: Hang-on-back filter
Flow Rate: ~600 L/H
Tank Capacity: ~ 150L
Power Consumption: 8W (energy efficient)
Filter Media Included: Sponge + Activated Carbon Cartridge
Upgradable Media: Ceramic rings, bio-balls, fine filter wool, zeolite, etc.
🧱 Filter Media Setup (Recommended Order)
Coarse sponge (mechanical filtration)
Activated carbon cartridge (chemical filtration)
Ceramic rings / bio-balls (biological boost)
Fine filter wool (optional – crystal clear water finish)
👉 For shrimp tanks, use a sponge pre-filter on the intake pipe.
🔧 How to Install
Hang the filter on the side/back of the aquarium.
Place inlet pipe inside the tank (adjust length if needed).
Fill the filter chamber with a little aquarium water (helps with priming).
Plug in and switch ON – water will start flowing.
Adjust flow control knob to suit your tank.
🧼 Maintenance
Rinse sponge every 2–3 weeks in old tank water.
Replace activated carbon monthly (or when water turns cloudy/odor appears).
Clean bio-media gently; never replace all at once to keep beneficial bacteria.
Check skimmer & impeller for clogs regularly.
📦 What’s in the Box
SunSun HBL-701 filter body
Sponge + Activated Carbon Cartridge
Inlet & outlet pipes with fittings
Surface skimmer attachment
✅ Why Choose SunSun HBL-701?
The SunSun HBL-701 is a budget-friendly, slim, and efficient hang-on filter perfect for hobbyists who want a clean and healthy aquarium without bulky equipment. Its surface skimmer, multi-stage filtration, and silent operation make it a great choice for planted tanks, shrimp tanks, and small community aquariums.
👉 Best for aquariums in the 150 L range, ensuring clear water and healthy fish.




