Tenji Hyperbaric Chamber


Treating gas problems in fish collections is a challenge faced by may aquarium institutions. While any Aquarist might see the occasional case of “pop-eye” (exophthalmos) or swim bladder issues, larger facilities with extensive collections will see these health problems more frequently. Unhappy with pinning fish or accepting fish loss, Tenji has a cutting-edge, flow-through hyperbaric chamber designed to treat these ongoing health issues.

Several years of testing and design have gone into this hyperbaric chamber, allowing aquarists to successfully quarantine and pressure-treat a wide range of conditions and species. Eager to make this technological advance more widely available, the Tenji team turned a functioning prototype into a marketable solution.

In 2019, Tenji debuted the Tenji Hyperbaric Chamber at the Regional Aquatics Workshop (RAW) to great interest and acclaim. And this fall, we placed our first unit at the Birch Aquarium in San Diego, California.

The public outreach center for the Scripps Institution of Oceanography, the Birch Aquarium is built on a long legacy of marine research and a strong belief in creating connections to the natural world. Thousands of fish live in over 175,000 gallons of water within their walls. 


The Tenji Hyperbaric Chamber fine-tunes and improves upon the prototype design to offer a powerful animal husbandry solution for institutions focused on the care of their collections:

  • Our experienced in-house design and engineering teams designed the Tenji Hyperbaric Chamber with user-friendly upgrades such as remote pressure, temperature, and flowrate monitoring and a text/email alert system so that animal care teams can receive alerts if any variable shifts out of a set range.
  • Like all Tenji construction, the Hyperbaric Chamber ships with a clear, easy-to-understand user manual documenting intuitive processes for calibration, cleaning, and more.
  • Our experienced in-house engineering and construction teams can complete and ship the Tenji Hyperbaric Chamber in as few as four weeks.

The Scripps Aquarium is currently using the Tenji Hyperbaric Chamber to treat a black rockfish with pop-eye. To avoid expensive species loss to care for your collection without the potential trauma and long-term health challenges of alternate treatment methods, talk to Tenji.