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Ocean Free Hydra Filtron Canister Filter


3 in stock

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Experience the amazing Mechanical | Biological | Chemical | Hydro-Pure Technology all in one system. The world's first 4 stage water purification system powered by Hydro-Pure Technology, OF Hydra Filtron is engineered to help you to achieve the best water conditions for your Aquatic animals. 

The Power of Hydra Filtron

Hydra Filtron’s 4-Stage Water Purification, goes beyond the conventional 3 stage filtration (Mechanical, Biological, Chemical), with the incorporation of the revolutionary Hydro-Pure technology that uses Hydroxyl Radicals (•OH) to accelerate the startup time from the usual 4-5 weeks to within 1 week, reduces water odour, and retains a crystal clear tank.

Download instruction manual.

Ready to Use

Hydra Filtron comes with everything you need to get started on a beautiful and clean aquarium.  


Key Features

One Pull Priming
Valve for Easy Maintenance
Surface Skimmer
A quick pull of the Primer draws water into the canister making it ready to use

Valve controls at the inlet and outlet pipes eliminate the hassle of dealing with water spills during maintenance

Removes unsightly surface oil film to improve oxygen exchange and increase light penetration at water surface



The 4-Stages of Water Purification

Stage Description Functions

Stage 1

3DM Nuggets

  • Breaks down large solids and traps suspended particles
  • Provides a high surface area for beneficial bacteria which helps break-down toxic waste (e.g. Ammonia and Nitrites) biologically

Stage 2 

BioTrap Sponge

  • Breaks down finer solids and traps suspended particles
  • Provides surface area for beneficial bacteria for further biological purification of toxic waste

Stage 3

3DM Beads

  • Provides highest surface area for beneficial bacteria which help break-down toxic waste biologically

 Fine Filter Wool

  • Removes fine particles

Carbon Pad

  • Adsorbs dissolved organic compound and heavy metals to maximize efficiency of the Hydro-pure Technology

 Stage 4

Hydro-Pure Technology

  • Prevents New Tank Syndrome which is the main cause of fish death in new tanks by constantly breaking down protein, and detoxifying Ammonia (NH3) and Nitrite (NO2-)
  • Reduces water change
  • Produces crystal-clear water
  • Reduces water odours by the oxidization of Sulphur-based elements which causes smell in the water




Hydra Filtron 1000

Hydra Filtron 1500

Hydra Filtron 1800

For Aquarium size up to


20-80 US Gal


40-160 US Gal


50-210 US Gal

Product Size







Pump Flow Rate

1000 L/H

270 US Gal

1500 L/H

400 US Gal

1800 L/H

480 US Gal

Circulation Flow Rate

600 L/H

160 US Gal/H

900 L/H

240 US Gal/H

1100 L/H

290 US Gal/H

Filter Media Baskets  Volume


1.3 US Gal


1.9 US Gal


2.7 US Gal

Filter Media Baskets




Power Consumption




Inlet & Outlet Hose

Diameter 16/22mm

Diameter 19/25mm

Diameter 19/25mm

Cable Length







Max Height







Cata-pure Cartridge(s)




3 Years Warranty Enjoy 3 years warranty on the motor, and 1-year warranty on manufacturer defects.


About Hydro Pure Technology


1) What is Hydro-Pure Technology?

Hydro-Pure Technology is a patented water detoxifying and depurating technology for applications in both Marine and freshwater Aquatic Hobby. It consists of two electro-plates to energize a cartridge box containing special Cata-Pure Catalyst Media to generate strong reactive Hydroxyl (OH•) radicals, which is the key to the detoxifying and depurating reactions process.

The 3 Phases of Hydro-Pure Technology

Phase 1. Aquarium water containing Protein, Ammonia (NH3) and Nitrite (NO2-).  

Phase 2. Cata-pure Media reaction produces reactive Hydroxyl Radicals (•OH) from water. Hydroxyl Radicals (•OH) reduces Protein, toxic by-products like Ammonia (NH3), Nitrite (NO2-), and odour from Sulphur-based by-products.

Phase 3. Biologically clean and healthy water for fish and invertebrates.

2) How does Hydro-Pure Technology benefit my fish keeping experience?
  • Hydro-Pure Technology creates safe and stable pristine “Hydro-Pure Water” similar to that of natural river stream rich in micro nutrients and minerals.
  • Prevention of cloudy water by the ionization of solid precipitation present in the waters.
  • Minimizes unpleasant smell in the water caused by the oxidization of Sulphur-based products.
  • Minimizes frequency of water change thus saving time and enjoy greater savings on your utility bills.
  • Hydro-Pure Technology is suitable for marine and freshwater fish tanks of all sizes, all types of fishes, plants and live corals including all levels of stocking density.
  • It also helps in the prevention of New Tank Syndrome especially in Marine tanks application, perfect for any applications that requires pristine water condition of safe and stable level of Ammonia, nitrites and nitrates acceptable for aquatic life form.