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AI Hydra Mount Flex Arm - Aqua Illumination (18 inch)


Item #: 3Z18112

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A new, and easy, way to mount your AquaIllumination Hydra LED fixture. 18" long flexible gooseneck allows for easy position and adjustment of your light. The silicone-coated flex arm is both an attractive and sturdy.

AquaIllumination`s most flexible mount for a rimmed or rimless tank, the Hydra Flex Arm is the simplest and cleanest full size fixture mount to date.

Compatible with:

  • All Aqua Illumination Hydra 32 Models
  • Any Aqua Illumination Hydra 26 Model that is equipped with a mounting hole in the back of the heatsink

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
April 02, 2020

Yes, I would recommend this.

Great product, when it is all in the package

Pros: Strong arm & aesthetically pleasing

Cons: Missing parts

I ordered 2 of these for my Hydra 32s and they both were missing the same piece. I notified Marine depot and they contacted AI to tell me there should be a part for my purpose... Go figure. I contacted AI and they sent me the parts needed. Now that I have them they function great. Just make sure you have all of the pieces needed.

Was this review helpful? 1 0


Reviewed on
December 06, 2018

No, I would not recommend this.


Pros: Once assembled it’s a solid unit

Cons: You have to buy new nuts and bolts to make it work

I purchased this AI Hydra based flex mount via Marine Depot. Shipping was prompt and fast. Upon receipt it appeared to be of good quality.

I began the assembly process and quickly determine that the provided hardware would not work for it’s purpose. There is a milled channel in the central body in which the attachment nuts slide into. Once the nuts are in the channel you attached the exterior “c” mounts to the body using a bolt to those recessed nuts. The only problem is the nuts are too small and spin inside the channel... basically there is no way to tighten the mount for assembly.

AI has no customer service number to call for help, that’s not worth a darn.

I contacted MD customer service, the rep was super helpful and pulled all schematics and videos he could for me but simply couldn’t assist due to an issue with the included hardware.

I decided to go to the hardware store to purchase correctly sized hardware for the application. Once I had the proper nuts and bolts assembly was a breeze and the product came together nicely.

Overall the mount is nice, solid, and very low profile... however I’m EXTREMELY disappointed that AI provides you with incorrect hardware rendering your mount not usable. This is supposed to be a premium product.

MD was great, shame on Aqua Illumination. If your willing to pay full price for a flawed mount, willing to go to the hardware store and play with different nut and bolt combinations to find one that WILL work, then this just might be the mount for you.

Was this review helpful? 3 0


Reviewed on
December 18, 2017

Yes, I would recommend this.

Sturdy and flexible

Pros: Sturdy

Cons: A better mounting option

Good product. A little difficult to mount on the tank due to the way it was made.

Was this review helpful? 2 0


Reviewed on
July 04, 2017

Yes, I would recommend this.

Nice mounting option for Hydra

Pros: Flexible positioning, give good height to cover my tank

Cons: None so far.

I am using this mount for a Hydra 26 HD on my JBJ RL45 and it has been fine so far. It's basically a large gooseneck mount with a bracket to hold the Hydras. I can really say anything bad it does its job and doesn't sag at all with the Hydra 26 I can't speak for the Hydra 52 but I can't imagine it would be any different. The mount is pretty solid but still flexible enough to manipulate to the position you desire.

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