Best ATO for Sumpless Rimless tank

[kevsqn]

Ive searched online and still quite confused as what is the best for my situation.
I have a 20G rimless tank. in the picture, it is just shy of an inch from the top to the water level.
and i would like to keep my water level that way.
whats the best ATO without me needing to lower my water level or at least not so much.
Thanks alot!

 

[Zwogle]

I use a Smart ATO Micro with a water level at about .5" from the top, It's worked great so far.

 

[macnets]

Smart ato micro!

 

[1987]

I really like the smart ato. I can just move it with my hand to adjust. No need to mess with brackets that break like other ato.

 

[1987]

Plus I've had past issues with float valves getting calcium buildup or a starfish that stops it from turning off

 

[Kentech5]

Another vote for the smart ato micro. I've had mine for a year and going strong.

 

[kevsqn]

Thanks guys. Unanimous vote is the best xD