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AquaMaxx cTech T-NANO Hang-On Calcium Reactor


Item #: UJ94571

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AquaMaxx cTech T-Nano Hang-On Calcium Reactors use an up-flow design to mix saltwater, calcium carbonate and CO2 inside a reaction chamber to eliminate the need for daily two-part dosing. Not only will the AquaMaxx T-NANO Calcium Reactor keep your levels balanced, you will no longer have to calculate daily dosages for your tank. With a seamless body, removable lid for quick media access and a small, space-saving design, the AquaMaxx cTech T-Nano Hang-On Calcium Reactor is truly one-of-a-kind.

AquaMaxx cTech T-Nano Hang-On Calcium Reactors are computer-precision engineered and utilize the latest aquarium technology to deliver unparalleled performance and value. Despite its small form factor, the T-Nano is rated for aquariums up to 75 gallons.

The new hang-on design allows you to easily hang the T-NANO reactor on your aquarium or in your sump. An effective and convenient inlet filter helps to trap particulates, extends the life of the pump and makes tuning the effluent drip rate as easy as possible. The high-quality pinch value allows for precise effluent control. Simplified inlet and outlet designs also improve efficiency.

With a built-in a pH probe holder, you can easily keep an eye on the pH inside the calcium reactor with a pH monitor or control the CO2 with a pH controller. A CO2 recovery system re-injects excess/unused CO2. This helps lower CO2 usage and minimizes excess CO2 from going back into your aquarium.

AquaMaxx Calcium Reactors were designed from the ground up with the aquarium hobbyist in mind. The computer precision-cut enclosure makes the reactor look and feel seamless.

Cleaning and maintenance is simple.

The workhorse powering the AquaMaxx cTech T-Nano Hang-On Calcium Reactor is the pump. Each reactor is equipped with an Italian-made Sicce Nano pump. These pumps were chosen specifically for their small size, energy-efficient design and whisper-quiet operation.

  • High quality cell-cast acrylic construction
  • Inlet prefilter to prevent clogging
  • Precise pinch valve
  • Simple to set-up and operate
  • Up-flow design prevents clogging and improves water circulation.
  • Accurate CO2 bubble counter
  • Thumbscrews for easy removal of lid ‚ Easy to clean and replace media!
  • Includes PH probe holder
  • Capacity: Up to 75 gallons
  • Pump: SICCE NANO
  • Over height: 14.2"
  • Reaction tube diameter: 3.2"
  • Chamber capacity: 0.8 L
  • Footprint: 7.1" x 6"

Manufacturer information

AquaMaxx is a Southern California-based aquarium supply company that entered the market in mid-2008 with a line of affordable metal halide bulbs. The brand quickly gained recognition as word spread about the high quality and low cost of their lamps. In 2009, AquaMaxx released a line of aquarium filter socks and, in early 2010, unveiled an assortment of high-performance protein skimmer accessories and upgrades.

5 Stars


Reviewed on
January 16, 2020

Yes, I would recommend this.

Just made my 3rd purcahse

Pros: Works like a charm

Cons: Needs better power head tubing.

Thumbs up! can be anything from Ca reactor to Bio reactor. Planning for my next tank.

As always, MarineDepot always have my back, even when my purchase have been more than 30 days to give me support on my product.

Was this review helpful? 1 0


Reviewed on
December 28, 2019

Yes, I would recommend this.

Thumbs for Marine Depot!

Pros: Great for small tanks

Cons: Requires zip ties to tubing /flimsy tubing.

Had a couple issues with this, nothing major. Marine Depot always went the extra mile for me. The tubing is flimsy, and can easily be damaged when removing.

Marine Depot is the Amazon of marine product service, thank you!

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Reviewed on
August 06, 2019

Yes, I would recommend this.

My 2nd unit

Love it, tiny, but doable. Used it as a bio sulfur.

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Reviewed on
March 07, 2019

Yes, I would recommend this.

Its cute....

Pros: Hang on!

Cons: Leaks.

Looks like a coffee tumbler, its tiny but does the job. Would give it 5 stars but the counter bubble is leaking.

MD is working on a replacement for it. I been using it as a Biodenitrator since then. My Nitrate is undetectable and my phosphate dropped from .16 to .04.

I am on my 2nd unit that I placed yesterday. My energy bill is killing me and trying to find a way to reduce energy usage by eliminating my sump and everything else.

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