"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)
"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)

"Tunze MAR" Circular Water Flow, Open Chamber, Energy Efficient Macroalgae Reactor for Naturally Removing Nitrates and Phosphates through Chaetomorpha Growth (comes with LED Light, DC Pump, and Tubing)

Brand: Tunze
Item Number: TNZE-MAR3181

Regular price $349.99 On Sale


Only 4 left in stock!

Estimated Arrival: Between Mar 04 and Mar 10. *ETA for USA only. For accurate lead times, call us at 727-214-7750

Large, Custom, Or Backorder: Arrival Times May Vary.

Shipping Policy: Little or No Shipping Charges for Regular-Sized Items; We Cover Part of the Freight Costs for Large Items Shipped Nationally. See Shipping Policy.


Function: Dramatically reduce nitrates and phosphates as nature intended by utilizing macroalgae growth (specifically "Chaetomorpha") to greatly cut down on regular maintenance tasks like water changes and improve the overall health of your aquarium system. Macroalgae also naturally enriches aquarium water with oxygen, and serve as a safe nesting ground for zooplankton like copepods to reproduce and gradually be sent to your display tank.

Dimensions: 9.2"L x 7.7"W x 16.6"H

Chamber Design: Open Chamber

  • No tubing or screens that need to be pulled out for harvesting algae
  • This means that the reactor does not need to be taken out of the sump to harvest algae due to height restrictions inside the stand

What's Included:

  • Tunze MAR Skimmer Body
    • Pre-installed Eco Chic LED Refugium Light
  • Comline 2500 DC Circulation Pump (132-318 GPH)
    • Pump Intake Guard
  • Turbelle DC Pump Controller
  • (2) 80"L Rolls of Silicon Tubing
  • Tubing Anti-Kink Guard
  • (3) Tubing Clamps
  • Red Rubber O-Ring
  • Power Adapter

What You Need:

  • "Chaetomorpha" Algae
  • Basic Light Timer

Here is the Tunze MAR Instruction Manual which covers topics like The Concept of Algae Filtration, Technical Specs, Safety Precautions, Full Positioning and Installation Instruction, Light Programming, Algae Harvesting, and Annual Servicing.

Thank you Tunze for this very comprehensive guide.

Tunze MAR Comprehensive Instruction Manual

Here is a video where Roger from Tunze gives us a brief look at the Tunze MAR by showing us the Circular Spinning Water Flow Pattern to Maximize LED Usage. Thanks Roger!

Here is another video by Tunze showcasing the MAR's Build Construction and the Visual Look of the LED's in Low Light.

Have any further questions that aren't answered here? We'd love to hear from you, and learn how we can help you be as successful as possible in this wonderful hobby.

You can call in to 727-214-7750 to speak with Tyler from our team to determine how to create your Ideal Aquarium Build.

Also feel free to reach out to us at info@twotidesaquariumsupply.com and we will aim to respond back within the next few hours.

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