Appropriate ATO for a 5 gallon jellyfish tank?

Ironic_Water

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I was given a jellyfish tank as a gift that looks like this (though this isn't the actual brand I have).

It's about 5 gallons and I'm having trouble deciding on a reliable ATO for it, not to mention the tank's circular shape may be a challenge for putting in an ATO...
 

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I was given a jellyfish tank as a gift that looks like this (though this isn't the actual brand I have).

It's about 5 gallons and I'm having trouble deciding on a reliable ATO for it, not to mention the tank's circular shape may be a challenge for putting in an ATO...
For a tank that small, I’d go with a simple gravity fed ATO like this. Does it have a sump? I’d guess not, but don’t know much about jellyfish keeping.

IMG_6090.png
 
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Ironic_Water

Ironic_Water

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For a tank that small, I’d go with a simple gravity fed ATO like this. Does it have a sump? I’d guess not, but don’t know much about jellyfish keeping.

IMG_6090.png
Unfortunately no way to mount that type of gravity ATO to it without it looking ridiculous. I've been looking at the Tunze Osmolator 3 nano, though it's still fairly big...
 
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Ironic_Water

Ironic_Water

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Is the top open? Like, is there a lip to mount anything to?
Yes, there's a removable hatch at the top with cut-outs for wires and tubing. I wish I had a picture to show, but there's enough room for a magnet-mounted water level sensor. The smaller the better though.
 

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Yes, there's a removable hatch at the top with cut-outs for wires and tubing. I wish I had a picture to show, but there's enough room for a magnet-mounted water level sensor. The smaller the better though.
The risk i think you are going to run with a single optical sensor (probably all that will fit) is that there is no fail safe shut off. Most of the popular ATO’s are bulky because they have at least 2 sensors and maybe even a float valve. But if you are willing to accept the risk of an overflow, there are a ton of single sensor options on amazon. Just not the big name brands.

I did stumble upon this one with 2 sensors though. Looks promising.

IMG_6091.png
 
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Ironic_Water

Ironic_Water

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The risk i think you are going to run with a single optical sensor (probably all that will fit) is that there is no fail safe shut off. Most of the popular ATO’s are bulky because they have at least 2 sensors and maybe even a float valve. But if you are willing to accept the risk of an overflow, there are a ton of single sensor options on amazon. Just not the big name brands.

I did stumble upon this one with 2 sensors though. Looks promising.

IMG_6091.png
dang what a coincidence, I was waiting for the Duetto webpage to load when you posted that. It looks tempting - small, hopefully quiet as it'll be in my bedroom. Might be a winner...
 

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Cool tank by the way! I had never seen these before. Might be going on the wish list. My baby son’s nursery theme is nautical… maybe he needs a jellyfish tank :thinking-face:
 
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Ironic_Water

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Cool tank by the way! I had never seen these before. Might be going on the wish list. My baby son’s nursery theme is nautical… maybe he needs a jellyfish tank :thinking-face:
Yeah it'll be neat to get going. Apparently jellyfish can be fairly hardy if you keep up with proper water changes.

Thanks for the help by the way!
 

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I have the duetto myself. It definitely works as a reliable ATO but I'm not sure how well it'll work for that tank. As for sound the small pump is definitely not silent lol.
 

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