Any good ATOs under 100$?

[Doctorgori]

I got those reef breeders on my non critical tanks…my only complaint is the re-fill tolerance won’t allow for water level finicky skimmers like Tunze Comline et

 

[Dbichler]

Avast peristaltic is amazing probably over 100 by a bit but worth every penny. 3 years on mine and 0 issues.

 

[Falreef]

Are the smart micro even available anymore? Reliable. I have 5 of them on my 8 tanks.

 

[Mike in CT]

Auto top off . Com sells a bunch of affordable ATO and you can get the whole shebang for under $100. They sell the nice reliable little pumps also.

Have used a double float from auto top off.com and a aqua lifter pump for 10 years without fail.

 

[Porpoise Hork]

I got those reef breeders on my non critical tanks…my only complaint is the re-fill tolerance won’t allow for water level finicky skimmers like Tunze Comline et

That's true, they are not as precise as a Tunze, but on say a 75 or larger tank it won't impact the salinity as much as on a nano. Even then on like a 20g nano we're only talking a difference of .01-.02 in salinity levels. That won't bother most fish or softies/LPS.

 

[mfinn]

I have a JBJ ATO on my 240. It's worked perfectly for 10 years now.

 

[GardenReef]

Dont think it meets your price point but the Tunze’s are awesome. Optical sensors, Super quiet and reliable. I tried budget / diy options for years and felt silly when i finally got the Tunze. Life was soo much easier.