Looking for a reliable plug and play ATO

[Fellow]

The return section of my sump is so small (~5gallon) that it needs to be topped up every day or the return pump starts sucking air.

I am looking for a trusted ATO that will work out of the box and preferably something with built in redundancy.

Hard to go wrong with a Tunze Osmolator...

[gobytron]

Tunze osmo all the way.
BEST purchase I ever made for my sump.

[Myka]

I wouldn't consider anything other than the Tunze Osmolator on my tank. That's what it has now, and nothing else would be an option for me.

[fkshiu]

Another one for the Osmolator.

Remember what Vince says: "The Germans always make good stuff."

[FitoPharmer]

Vince also says: "Stay away from cannibal prostitutes"


...Sorry I couldn't help myself...

But, yeah Tunze ozmo is the best ATO.

[lastlight]

Another vote for Tunze. Have owned two and will never run a tank without one.

[mike31154]

If you have the room and want to keep it simple, gravity feed from a raised container. Either use a mechanical float valve or a dual tube set up to control the level. Another advantage is that it's not affected by power outage. Of course a power outage brings with it all kinds of other issues....

[daniella3d]

I use 2 JBJ ATO on my 2 tank and they have worked flawlessly for a year now. Much less expensive than the tunzee which was not in my budget for my 2 aquariums.

Originally Posted by Fellow

The return section of my sump is so small (~5gallon) that it needs to be topped up every day or the return pump starts sucking air.

I am looking for a trusted ATO that will work out of the box and preferably something with built in redundancy.

[Pescador]

For another option check out Blue Line's Tsunami AT1 I've used one for 8 years literally without any maintenance. No moving parts it uses air pressure.
You should be able to find one for $60-$70
Don't use the suction cup, zip tie it to a bracket.