Description
The concept of using macroalgae as a method of nutrient export is not new. However, the introduction of the ARID (Algae Remediation 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 analogous to a human lung for the aquarium, in that the ARID supersaturates 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 occurs and to maintain high dissolved oxygen levels throughout the night when the display aquarium lighting is off and photosynthesis has ceased to occur.
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