Hayman Phosphate or Bio Reactor For Nitrate & phosporous Removal
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Pax Bellum ARID Reactor

The concept of using macroalgae as a method of nutrient export is not new. However, the introduction of the ARID (Algae Remidiation Illuminated Device) by Pax Bellum is a quantum leap forward. This ingenious device utilizes macroalgae (specifically Chaetomorpha) to function as a nutrient export mechanism. The unique design of the ARID incorporates a coaxial LED light tube to maximize light penetration and efficiency.

The tube and flange design within the device serves to isolate the algae from atmospheric CO2, which effectively limits the carbon source for the algae to just that which is respired by organisms within the aquarium. The ARID is analagous to a human lung for the aquarium, in that the ARID supersaturates the the aquarium with oxygen from the algae created during its respiration. Pax Bellum recommends running the ARID on a “reverse daylight” cycle (ie; opposite of the display aquarium). which helps to balance the natural day/night pH swing that occur, and to maintain high dissolved oxygen levels throughout the night when the display aquarium lighting is off and photosynthesis has ceased to occur.

Unit Price :

  • N 18
    Footprint 165mm x 165mm x 419mm
    Tank filtration 100-400 litres
    Preferred flow rate 700 lph
    14 watt LEDs
  • N 24
    Footprint 241mm x 209mm x 584mm
    Tank filtration 400-800 litres
    Preferred flow rate 700 lph
    20 watt LEDs
  • C 30
    Footprint 330mm x 304mm x 762mm
    Tank filtration 800-2,000 litres
    Preferred flow rate 1,550 lph
    42 watt LEDs
    Stainless steel fittings
  • C 36
    Footprint 330mm x 304mm x 927mm
    Tank filtration 2,000-4,000 litres
    Preferred flow rate 2,000 lph
    42 watt LEDs
    Stainless steel fittings
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Dalua create the finest aquarium LEDs in Australia because our lights are made for aquarium enthusiasts, by designers and engineers who know and love fish just as much as you do. Our products are designed to be easy to set up and secure; the SS, SS Mantra and Dalua ranges even come with 2 power cords, and the SS is complete with legs and a hanging kit. We thoroughly test our lighting models in real aquarium setups, and we’re confident that you’ll love the aesthetic and practical results.








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