Description
DoPhin Mini Canister Filter CF-300
The DoPhin CF-300 Mini Canister Filter is a compact and efficient hang-on external filter designed for nano aquariums up to 40–50 litres. It delivers multi-stage filtration, low power consumption, and whisper-quiet operation, making it a reliable choice for small planted and shrimp tanks.
🌊 Key Features
✅ Multi-stage filtration – Comes with coarse & fine sponges, activated carbon cartridges, and bio-ball for mechanical + biological filtration. Can be upgraded with ceramic rings, filter wool, or extra bio-media.
✅ Self-priming design – Built-in exhaust tube allows easy start-up without manual siphoning.
✅ Safety locks – Equipped with 4 strong side locks to prevent leaks and ensure safe use.
✅ Rain bar outlet – Spreads water evenly and improves oxygenation in the tank.
✅ Compact & quiet – Slim body hangs neatly on the tank, with low vibration & silent operation.
✅ Easy maintenance – Quick sponge cleaning and media replacement with fast disconnect system.
🐠 Suitable For
Tank Size: 20–50 litres (best for 1–1.5 ft aquariums)
Fish Types: Tetras, Guppies, Bettas, Rasboras, Shrimp, Snails, and other small community fish.
⚠️ Not suitable for large/messy fish like Goldfish, Oscars, or Arowana (unless used as an extra filter).
⚙️ Specifications
Model: CF-300
Type: Hang-on mini canister filter
Flow Rate: ~410 L/H
Tank Capacity: Up to 40–50 L
Power Consumption: 6.7 W (energy-efficient)
Filter Media Included: Coarse sponge, fine sponge, activated carbon cartridges ×3, bio-ball
Upgradable Media: Ceramic rings, extra bio-balls, activated carbon, fine filter wool
Size: 18 × 10 × 22 cm (approx.)
Weight: ~1.2 kg
Tubing: 12 mm ID / 16 mm OD (with inlet, outlet, spray bar & suction cups)
🧱 Filter Media Setup (Recommended Order)
Coarse sponge – traps big debris (mechanical)
Fine sponge – supports beneficial bacteria (biological)
Activated carbon – removes odor, toxins & discoloration
Bio-ball / ceramic rings – boosts biological filtration
Fine filter wool (optional) – for crystal clear finish
👉 For shrimp tanks, add a sponge pre-filter to protect shrimplets.
🔧 How to Install
Hang the filter on the side/back of the aquarium.
Connect inlet & outlet pipes, attach the rain bar.
Fill the chamber with tank water for easy priming.
Plug in & switch ON – water circulation begins.
Adjust flow to suit your fish.
🧼 Maintenance
Rinse sponges every 2–3 weeks in tank water.
Replace carbon every 2–4 weeks as needed.
Rinse bio-media gently, never replace all at once.
Check tubing & spray bar for clogs/oil film.
📦 What’s in the Box
DoPhin CF-300 filter body
Coarse & fine sponges
Activated carbon cartridges ×3
Bio-ball
Inlet & outlet pipes
Rain bar / spray bar
Suction cups & connectors
✅ Why Choose DoPhin CF-300?
The DoPhin CF-300 Mini Canister Filter is the perfect choice for nano & small aquariums. With its multi-stage filtration, compact design, and quiet operation, it keeps water clean, oxygenated, and healthy for your fish.
👉 Best for shrimp tanks, planted aquariums, and small community setups (20–50L).
