ES-Series Castle Dawn Aquatics Stainless Steel External Filters for Nano Aquariums Ultra Quiet Premium Mini Canister Filter

The ES-Series stainless steel external filters are engineered for nano aquariums, desktop aquascapes, shrimp tanks, and small to medium planted tanks. Built with a premium polished metal housing and precision-machined parts, these miniature external filters deliver exceptional mechanical and biological filtration in a compact footprint that fits where standard canisters cannot.

Each model offers ultra-quiet operation, smooth water flow, and specialised inlet and outlet diameters designed for rimless high-clarity aquariums. The ES150, ES300mini, and ES300mini+ feature dual-speed flow modes, making them suitable for soft-flow planted tanks or high-turnover setups.

Whether you run a Betta scape, nano shrimp cube, or a fully planted display tank, the ES-Series delivers professional-level filtration in a beautifully designed, space-saving body.

Key Features and Important Notes:

• What’s Included:
  – Stainless steel filter body
  – Pre-installed motor head
  – Inlet pipe
  – Outlet pipe
  – Stainless steel intake guard
  – Sponge filter pads
  – Tubing connectors and fittings

  Premium Stainless Steel Construction:
  Durable and corrosion-resistant with a minimalist high-end appearance.

  Compact and Space Saving:
  Designed to sit beside nano tanks or inside aquarium cabinets without taking up space.

  Dual-Speed Flow Modes:
  Available on ES150, ES300mini, and ES300mini+ for gentle planted tanks or higher turnover when needed.

  Ultra Quiet Performance:
  Ideal for bedrooms, offices, and desktops.

  Precision Inlet and Outlet Pipes:
  Stable water flow with 6 mm, 10 mm, and 12 mm compatibility, depending on model.

  Important:
  This item must be shipped by sea due to its size and weight, with an expected delivery time of up to 35 days. An express shipping option is available. Please email or message us for pricing.

  Warranty:
  1 Year Warranty (T&Cs apply).

Model Overview and Tank Compatibility:

ES60 Filter:
Power: 1 W
Flow rate: 60 L per hour
Head height: 1.0 m
Inlet diameter: 6 mm
Outlet diameter: 6 mm
Filter media volume: 0.3 L
Recommended Tank Size: 10 litres
Example aquarium sizes:
– 20 × 20 × 20 cm
– 30 × 18 × 24 cm
– Desktop tanks up to 10 L (2.64 US gallons / 2.19 UK gallons)

ES150 Filter:
Power: Low 4 W / High 6 W
Flow rate: 240 to 420 L per hour
Head height: 1.4 m
Inlet diameter: 12 mm
Outlet diameter: 10 mm or 12 mm
Filter media volume: 1.0 L
Recommended Tank Size: 40 litres
Example aquarium sizes:
– 45 × 30 × 30 cm
– 45 × 28 × 30 cm
– 30 × 30 × 30 cm
– 36 × 22 × 26 cm
– 25 × 25 × 25 cm
Approx capacity: 10.56 US gallons / 8.79 UK gallons

ES300 Mini Filter:
Power: Low 4 W / High 6 W
Flow rate: 240 to 420 L per hour
Head height: 1.4 m
Pipe size: 12 mm
Filter media volume: 2.0 L
Recommended Tank Size: 70 litres
Compatible up to 60 × 30 × 36 cm
Approx capacity: 18.49 US gallons / 15.39 UK gallons

ES300 Mini Plus Filter:
Power: Low 4 W / High 6 W
Flow rate: 240 to 420 L per hour
Head height: 1.4 m
Pipe size: 12 mm
Filter media volume: 3.5 L
Recommended Tank Size: 100 litres
Compatible up to 60 × 40 × 40 cm
Approx capacity: 26.41 US gallons / 22.00 UK gallons