Tunze Macro Algae Reactor 3181


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Chaetomorpha algae is used by many hobbyists as a natural way to control nitrates and phosphates in the aquarium. As the algae grows, harvesting algae is necessary from time to time to maintain the biological balance in the aquarium – an excellent organic alternative to using chemicals that is also economical!  The TUNZE® Macro Algae Reactor (3181.000) was developed for this purpose, and can be placed in any filter tank, or, next to an aquarium without external filter technology, where the circulation of water in the reactor ensures that the algae culture rotates and reduces the number of light sources.  

The included Tunze Eco Chic Refugium LED is a unique waterproof light with a spectrum suited for refugium macro-algae growth in marine or freshwater systems.   The easy snap holder attaches and detaches the light, easily, making maintenance a breeze.

The Macro Algae Reactor also includes an appropriate sized circulation pump with silicone hosing, making for a quick and effortless install - just add algae and you are good to go. The pump spins the algae within the reactor so that all the algae can make full utilization of the lighting system to properly photosynthesize and grow.

  • Natural method of controlling nitrates and phosphate
  • Economical; grow, harvest, and re-grow over-and-over
  • For use internal or external
  • Waterproof Eco Chic Refugium LED with the right 
  • Quick install, with the included circulation pump - just plug and play
  • For aquariums from 26 - 159 gallons (100 to 600 liters)
  • Flow rate: 106 - 238 gph (400 - 900 l/h)
  • Energy consumption with pump: approx. 18 W
  • Reactor dimensions (L x W x H): 7.9" x 6.3" x 15.7" (200 x 160 x 400 mm)
Included in the Box:
  • Tunze Macro Algae 3181 Reactor
  • LED Eco Chic Refugium 8831 
  • Comline® Pump 2500 electronic
  • Silicone hose 18mm ID x 24mm OD ( 0.71" ID x 0.94" OD) tubing length 2m (~6.5 ft) 

Also available in a larger size, Macro Algae Reactor 3182.

Manufacturer Info

For forty-five years the name TUNZE® has been synonymous with aquariums. Many products and components which we have developed in the course of time are now standard features of aquarium technology today. This confidence in TUNZE is no coincidence. The company has remained true to its philosophy right from the beginning, researching water biotopes all over the world to develop components which enable natural water conditions in the closed environment of an aquarium. In the implementation of know-how, effectiveness and efficiency, TUNZE® takes the lead in environmental compatibility. Their motto is: quality and reliability. These values are upheld with well thought-out and precise tool making by highly qualified experts. The brand names of TUNZE® and Turbelle® meet the expectations of the seal of quality; Made in Germany. Many of the products shown in this catalogue are protected by national and international patents.

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Could this item be utilized without a sump? Like with an AIO unit where the reactor would sit beneath the display tank inside the cabinet. Or would head pressure be too great?
Asked : Jun 17, 2019
By : Jacob Applegate
How long are the silicon hoses that come with it & what size hoses - 1/2" or 3/4"?
Asked : Jun 17, 2019
By : Bonnie

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