Works well fills need By Thomas on 12/9/2014
Thomas would recommend this product to a friend
Bought this to top off my nano tank. Set up was easy and does a good job maintaining water level. Lot less hastle than topping of tank daily and keeps salinity more stable
Can't imagine how I lived without this thing By Sean on 12/4/2014
Sean would recommend this product to a friend
No more lugging around jugs every other day, now it's only once every couple weeks! :) This is a huge upgrade and peace of mind. I have a small tank so this is huge in helping me keep my water parameters stabilized. This is a must-have for smaller reef tanks for people serious about their corals.
Works great By Meaton on 11/19/2014
Meaton would recommend this product to a friend
Perfect for my nano cube 28G reef tank
Compact. Works well. By Joseph on 10/29/2014
Joseph would recommend this product to a friend
The unit is very compact, works well, and maintains your water level with frequent small top offs.
My only complaint is the pump doesn't have a suction or bracket so that it sticks to the bottom/side of your reservoir bucket.
Replaced Hydro-fill By peter on 10/7/2014
peter would recommend this product to a friend
I owned the IM Hydro-fill for about 6 months when the controller went out. I've only had the Tunze running for a couple of weeks but I like it better already. Triggers from slight water level drops and I like the idea of the built-in fail safe.
Only complaint is the pump is pretty loud.
14days Dead By Richard on 9/12/2014
Richard wouldn't recommend this product to a friend
problem for the controller pump not working
Great System By John on 8/13/2014
John would recommend this product to a friend
Works great with my 38 gallon
14 months dead By Jason on 7/2/2014
Jason wouldn't recommend this product to a friend
Dead after 14 months. pump is fine brain unit doesnt work anymore.
Great product very reasonably priced By Randy on 5/30/2014
Randy would recommend this product to a friend
Love this little ATO system, and it's affordable for a Tunze product! I've had it for a week and it has been absolutely reliable with no fluctuation in my water level. My sump is a 10g aquarium with a heater, skimmer, and return pump all packed in, so it is a tight fit but it works. I left the cardboard separator between the two magnets because I had read that the magnets being too close can interfere with the float valve. It works like a charm and I couldn't be happier! Best $100 I have spent on my aquarium so far!
To the Top! By Taia on 5/21/2014
Taia would recommend this product to a friend
Tunze has a great product here! It has been working flawlessly to keep my tank topped up and my levels much more stable. It's really one of the most essential pieces of equipment you can buy, it's well made, but my only gripe is the quick connect from the pump to the controller itself. I'd prefer something a bit more salt creep proof! But overall, I'll be buying another one for my next tank as well!
ATO for my nano By charles on 5/12/2014
charles would recommend this product to a friend
installed this ATO on my 28 gal.nano cube.so far it's working great.now my cheap protein skimmer works a lot better because of the constant water level.pump's a little loud so I suspended just above bottom of container and now it's quiet.doing great so far.
Pretty OK By Benjamin on 4/10/2014
Benjamin would recommend this product to a friend
After avoiding a couple of floods when i first hooked it up, i think i finally have it dialed in. If the glass on where you are placing it, make sure to use a spacer, as the magnet affects the float. directions could be clearer about this. after I got it going correctly, i love it.