Ruby ATO 10 Gallon Reservoir - Trigger Systems

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Ruby ATO 10 Gallon Reservoir - Trigger Systems

100% Recommend this to a friend (2 of 2)

SKU: 209685

reg. $169.99

Special Price: $144.49

In Stock: 25
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Quick Overview

Ruby ATO reservoirs feature crystal clear acrylic with an elegant emerald top, to hold top off water for your aquarium in a closed container. The Trigger Systems ATO containers have a removable lid to prevent excess evaporation, while providing a large opening to refill and clean the reservoir as needed.

Each ATO reservoir has two 0.25” OD holes for tubes to be plumbed through, or wires for float switches.

The Sapphire, Ruby, and Emerald line of ATO reservoirs have laser engraved water level markings so you can monitor how much water your tank is using.


10” long x 16” wide x 15” tall - Overall reservoir size

3 7/8" long x 6 3/8" wide - Opening to refill reservoir size


Full Details

An Auto Top Off container is perfect for holding a fixed amount of top off water. An appropriately sized ATO reservoir would be able to supply your tanks ATO needs for a few days if not weeks, while not being too large to cause a big salinity swing or flood the sump if the top off pump were to get stuck on.

Most auto top off units will come with a pump that will need to be in the reservoir to pump water to the aquarium.  The Trigger ATO units come with a super wide opening to allow a pump to be placed in the reservoir while having small 0.25” holes for the tubing to be routed.


Crystal 5 – 6” long x 14” wide x 15” tall

Crystal 10 – 10” long x 16” wide x 15” tall

Ruby 5 – 6” long x 14” wide x 15” tall

Ruby 10 – 10” long x 16” wide x 15” tall

Emerald 5 – 6” long x 14” wide x 15” tall

Emerald 10 – 10” long x 16” wide x 15” tall

Sapphire 5 – 6” long x 14” wide x 15” tall

Sapphire 10 – 10” long x 16” wide x 15” tall


2 Items

  • Matches my Ruby Emerald Sump. By Albert on 8/1/2017

    This thing looks sharp if you're ok with allowing aquarium equipment out of the stand. I originally was going to make a reservoir outside the stand and then cover it with something "furniture life". But after seeing how sharp this thing I decided to let my pride of understand technology extend into my living room. It matches my sump perfectly, doesnt look bad at all since its mostly clear, and most importantly its got accurate marks to measure top off evap and it has a large opening to refill so that water coming out of a 5g bucket doesn't spill everywhere.
  • So much easier By FreeSolo989 on 7/7/2016

    This is a very well built product. Every thing is finished well and the product works great. I give it 4 stars because its not a true 10gal Reservoir. Its off by just a bit, its closer to nine gallons. But still in my application it works great and i would recommend to a friend


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Product Questions

How would you suggest keeping algae from growing on the inside of the reservoir
Question by: James on Jun 24, 2016 11:06:00 AM
I would personally use some plastic backing for aquariums and wrap the container to shield light out. :-)
Answer by: Randy (Admin) on Jun 29, 2016 5:43:00 PM