Budget Friendly ATO suggestions for Large tanks

[LPS Bum]

I use a Duetto 2 ATO on my Reefer 625, and a cheap $50 Amazon one on my 240 gal FOWLR. Haven’t had any problems with either one.

 

[Aquaddictorbj4]

I am using xpa duetto ATO as well. operating for over 2 year and work really great .
Price is really friendly