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AI Hydra HMS Mount Double Arm Kit - Aqua Illumination


Item #: 3Z18082

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Great for mounting multiple lights on one rail across your tank.
*Requires a HMS tank mounting rail to fit your tank, and HMS mounting brackets for each Hydra (sold separately).

The Hydra Mounting System (HMS™) is designed to provide an easy to use, adjustable tank mount solution for the following models:

Adapts to Your Tank
Tailor the HMS to your tank. Width, height, and even the angle of the light is able to be fine-tuned.

Slide & Swivel
Slide and swivel your lights to exactly where you want them, then fasten them in place to best illuminate your livestock.

Cable Management
The HMS features a slim profile with integrated cord management to minimize visual clutter and complement the clean look of your Hydra fixtures.


  • Max Tank Thickness - 1.125"
  • Max Height - 13"
  • Max Outreach - 14.3"

What`s Included:

  • Vertical HMS Rails 15" (x2)
  • Pivot Brackets (x2)
  • Mounting Feet (x2)

Manufacturer information

Founded in 2007, C2 Development, Inc. (AI Life Illuminated) is the leader in high performance, high efficiency reef aquarium lighting systems. We are constantly pushing the limits of illumination technology.

4 Stars


Reviewed on
February 21, 2021

No, I would not recommend this.

accident waiting to happen

Pros: like all AI products it looks very nice

Cons: not sturdy, hydra 32hd cord does not fit inside rail

Not sturdy. Afraid my lights are going to fall into the water and the Hydra 32HD power cord does not fit in the rail.

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Reviewed on
December 06, 2020

No, I would not recommend this.


Pros: Looks Nice

Cons: Wobbly, Can't get legs and cross bar square, wrench and screws strip cord Channel is too Small for the HD lights

Impossible to get square, wrench strips way to easily, cord channels are too small for the Hydra HD lights. Going to make something from 80/20 and throw this in the dumpster where it belongs.

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Reviewed on
October 21, 2020

Yes, I would recommend this.

Ai mount

Clean, strong, perfect fit. Glad I ordered. Highly recommend

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Reviewed on
September 26, 2019

Yes, I would recommend this.

Like them

Pros: Solid

Cons: Screws and supplied Allen wrench need to be better quality

I like how they look

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Reviewed on
July 11, 2019

Yes, I would recommend this.


Pros: everything about its worth the money

Cons: Nothing yet

Its worth the money, i feel my lights are secured, they are easy to mount, you can adjust how high you want them or how big is your tank and its easy to hide the cords. The rails are a bit expensive, but if your buying hydras the rail is worth it. I prefer to protect my investment.

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Reviewed on
April 01, 2018

Yes, I would recommend this.

Awesome light kit

Pros: Easy to use

Cons: Allen screws easily strip out

This kit works perfect on rimmed tanks. Easy install love the adjustablity

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