ATO for a 2g pico

[GeoFabio]

Hello guys, someone could suggest me a complete ATO for a 2 g pico. I will away from home for a couple of days and I'm scared to find a bad surprise when I come back.
The tank is 25x25x25 (centimeters), generally the evaporation rate is about 0.45/0.50 Liter for day, I measured an decrease of water level about 0.8 mm

 

[JoshH]

I would say either a Smart ATO micro or a tunze 3155 depending on how much room you have for the sensor...

https://www.bulkreefsupply.com/smart-ato-micro-120p-auto-top-off-system-autoaqua.html

https://www.bulkreefsupply.com/tunze-osmolator-universal-3155-auto-top-off.html

If the room is available definitely the tunze, I love mine as do many others. But the sensor is rather large.

 

[AdamNC]

Both of these have much smaller sensors.

Complete kit
https://www.bulkreefsupply.com/tunze-osmolator-nano-3152-auto-top-off.html

Will need to buy a pump
https://www.bulkreefsupply.com/auqa-gadget-titanium-hydrofill-ato-controller-innovative-marine.html

 

[JoshH]

Both of these have much smaller sensors.

Complete kit
https://www.bulkreefsupply.com/tunze-osmolator-nano-3152-auto-top-off.html

Will need to buy a pump
https://www.bulkreefsupply.com/auqa-gadget-titanium-hydrofill-ato-controller-innovative-marine.html

I don't believe the 3152 is smaller than the micro, it uses the same float switch as the 3155 which is larger than the optical sensor the micro uses. But definitely smaller than the 3155. Either way the 3152, 3155 or the micro are all solid systems.

 

[AdamNC]

The magnet and base on the 3152 is smaller than the 3155. The floats are the same. But I think the Hydro is comparable to the Micro.

It’s all a matter of what you want to pay.

 

[JoshH]

The magnet and base on the 3152 is smaller than the 3155. The floats are the same. But I think the Hydro is comparable to the Micro.

It’s all a matter of what you want to pay.

Interesting, they look the exact same size to me although I don't use the main mounting pad for my float only the optical. I use the Second smaller mount (Same as the 3152, the 3155 comes with both mounts) so I can mount it in a separate part of the sump, I probably should have been more specific about which one I was talking about, But definitely comes down to budget

 

[hart24601]

Been using the smart ato micro for my 3g cube with kalk and it’s been a rockstar so far but only a month using it.

 

[GeoFabio]

Thank you guys, definitevely i will buy the cheaper between tunze nano and smart.