Great ato. Works as advertised. Pump fits in 5 gal jug By Chris on 5/17/2016
Chris would recommend this product to a friend
This top off works really well. The only thing to remember is to prime the pump but after that it runs like a champ.
So long to my KW drip By Eric on 5/6/2016
Eric would recommend this product to a friend
After months of setting up an evening kalkwasser drip (and often forgetting to set it up), this is a real time saver. Once a week now I fill my top-off bucket and it keeps my sump consistent and slowly doses my KW. I'm a fan.
You will HAVE to replace in 2 years By FlyinBryan on 4/26/2016
FlyinBryan would recommend this product to a friend
My recommend to buy is very tepid. You will only get about 2 years max out of one of these units. I really want to like it, but, the eye stops functioning after 2 years. All the cleaning of the eye will NOT make a difference. I have 1 hour to get to bed and get up in the morning for an early flight and I'm in travel he!! week, 6 flights. I can NO longer rely on this essential piece of equipment to maintain my tank. I will probably loose several SPS as a result of my jacked up tank all because this ATO failed --- AGAIN. This is the 3rd one I've bought that does this, it is NOT an isolated one off case at all. Poor quality in the long run. I will never buy again.
best in the market By eric on 4/10/2016
eric would recommend this product to a friend
I feel safe that this will not fail and works great with the Apex or without
No worries By MARIO on 4/5/2016
MARIO would recommend this product to a friend
I purchased the second one, and as for piece on mind extra pumps, one pump failure thus far. It is a good product, price but good..
Nice product By Knuckledragger on 3/16/2016
Knuckledragger would recommend this product to a friend
The instructions and a bit weak but I was able to look online and get the info I needed. Overall this is a bit expensive for what it is but works great. The pump is louder than I expected even though I have it turned down as far as it will go (nano setting).
Best out there By Mike on 3/14/2016
Mike would recommend this product to a friend
After my 1st two ato's failed (smart ato and jbj) I finally bought the tunze. It is so much better it's not even close. Wish I had bought this 1st and saved myself the $$$ and headaches.
Works but its very sensitive to the water level. By David on 3/3/2016
David would recommend this product to a friend
I watched the BRS youtube videos and listened to Ryan talk about how he prefers this ATO to the others on the market. I bought into the hype and bought it. I am running a neptue apex on my system and I realized after I bought this ATO, that with the Salinity probe I'm running i could have built a DIY version that would have done a better job of keeping the salinity at a set value. The osmolater is great for filling from the tank with Rodi water. But my Salinity shifts from a high 36 to a low 35 ppt rather frequently. Its best used on a system that isn't running a controler like an apex or reefkeeper. With a controler you can buld a much more consistent ATO from DIY parts.
Best ATO By Jeffrey on 2/20/2016
Jeffrey would recommend this product to a friend
This is a no brainier. Not worth the risk to buy a cheaper product.
Flawless By AJ on 2/18/2016
AJ would recommend this product to a friend
I've been running this for over a year now and it's been flawless. No need to worry when I travel.