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Innovative Marine AUQA Gadget HydroFill Ti Auto Top Off ATO Reservoir - 15 Gallon


Item #: 0I7332

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Say “Au Revoir” to your old reservoir.

The new Innovative Marine Hydrofill TI Reservoir is the next generation ATO gadget on the market, and now comes in a 15 gallon size, at a mere footprint of 12.01" x 17.99".

The Hydrofill Ti Reservoir eases the pain of refilling your reservoir. With the unique pull-out fill-drawer built into the unit that saves time, saves your floor from spills, and makes refilling your reservoir a breeze.  It is no longer necessary to turn off the ATO, pull out the ATO pump, remove the ATO container to add water, nor, lift the heavy and full ATO reservoir back in place, reinstall the pump, and turn your ATO back on.  Now, just slide out the fill drawer, add water then close drawer - DONE!

The unique hybrid construction of glass body and acrylic refill drawer, give it long lasting durability and every day convenience.

Equipped with a floating level “red” indicator, you’ll always know where your water level is at.

The accessible rear opening leaves enough room for RO tubes, power cords, and tubing so no matter how you set up your reservoir, we’ve got you covered. 


  • Pull Out Easy Fill Drawer
  • Built-In Drawer Stopper
  • Colored Floating Water Level Indicator
  • Corner Protectors
  • Pre-cut rear opening Rear Cord / Cable Ports


  • 15 Gallon Capacity
  • Dimensions: 12.2" W x 18.2" L x 23" H
  • Hybrid Glass and Acrylic Construction

5 Stars


Reviewed on
February 28, 2021

Yes, I would recommend this.

Innovative Marine AUQA Gadget HydroFill Ti Auto Top Off ATO Reservoir - 15 Gallon

Pros: Size, water level float, easy to fill, price, hose/cord ports

Cons: None

Fantastic ATO Reservoir! Easy to fill and great size so don't need to refill as often. The float indicating the water level is a bonus! And the ports for cords/hoses are great!

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Reviewed on
February 05, 2021

Yes, I would recommend this.


Pros: 15 gallon , Draw for filling, Looks great next to tank.

Cons: none

This is the 3rd one I have purchased , I have the 5 gallon one on my Seahorse Tank 60 gallon system, A 15 gallon one on my SPS Redsea Reer 250 System with Frag tank 75 gallon total. And just added another 15 gallon one for my new 180 gallon build. I like the fact that I can go for a week without having to fill the reservoir . They look great next to the tank and not like an afterthought. The draw makes filling very easy.
To get an acrylic that will hold 15 gallons will cost you over $300,00 plus shipping . At $200.00 with shipping this is a no brainer.

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Reviewed on
May 13, 2019

Yes, I would recommend this.

Best reservoir tank out there.

Pros: Nice looking and super easy to use.

Cons: Non

Don't even consider the 5 gallon, go with the 15. Looks fantastic next to my my 150. My wife doesn't mind it sitting out at all, looks great. Filling it could not be easier.

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Reviewed on
May 03, 2019

Yes, I would recommend this.

Buy the 15 gallon size

Pros: Holds 15 gallons. And the pull out drawer makes it easy to fill

Cons: Not any

Just got mine yesterday. I will set it up today next my 100 gallon tank also a innovative marine. I have to put it next to my tank looks better then a Rubbermaid box.

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Reviewed on
March 26, 2019

Yes, I would recommend this.

Awesome Product

Pros: Well built, large capacity, good price

Cons: I would like to see all black glass with only a viewing window to reduce potential algae.

I love the fact that this product has a drawer. I was able to build a custom stand and incorporate this product because of the drawer.

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Reviewed on
February 27, 2019

Yes, I would recommend this.

Best Thing EVER

OMG I got one today set it up and it is so beautiful and makes life so much easier. It is simple to work I have it pushed back ( under the main tank ) as far as I can and with the drawer I can so easily refill the RO since I have no chance of putting a direct line to it. No more lifting and pushing 5G jugs under the tank plus I can leave it alone for much longer !! LOVE IT

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Reviewed on
February 25, 2019

Yes, I would recommend this.

works great

first one arrived cracked, but MD replaced it no questions asked. Great customer service! thank you.

working unit is a life saver....allows me 15 gallons, vs my old 5 gal bucket. This thing sits outside of the tank and looks great all the while. Easy to fill, just works!

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Reviewed on
February 12, 2019

Yes, I would recommend this.

Just received the Unit

The unit is exactly what was expected. The packaging to get this to me was extremely well packed (I have lots of bubble wrap and Styrofoam to go around now.

Was this review helpful? 3 0

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