Tunze Osmolator Nano 3152.000 Auto Top-off System

Love the tunze osmolator and other tunze products. However, I received this unit with a bad power supply. After some frustration and testing with a 9v battery I pinned the problem down to the power supply. Went get a new 12v >1.6 amp power supply and the unit works great.

Really easy to set up. Make sure the pump is primed (I turned it upside and waited for the bubbles to escape) and you're good to go. I got the nano version despite having a 75g and it's working fine. Definitely recommended!

I just installed on my Nuvo 20 and it works great. It fits perfectly in the back and is a must have for any saltwater tank.

The Tunze Osmolator Nano was easy to install, and is very consistent in performing it's job. The instructions left a little to be desired, mostly because of the language translation, but included all the necessary information to set it up successfully. The pump appeared a little weak at first, until I shook the pump a little while submerged allowing the air in the pump to escape and pressure to stabilize. It's been chugging along like a champ since I set it up. I would recommend this product for any Automatic Top Off task, provided you follow the tank size restrictions given by the manufacturer.

Does exactly what it is meant to do.<br>Easy to set up, install.<br>No complaints on product, jest needed to find the right way of incorporating into my system.<br>

I purchased the tunze osmolator nano for my 75 gallon mixed reef tank, I know is NOT a nano tank , bur I installed the device sensor in the small return pump compartment in my sump (where water level due to evaporation is visible) and is maintaining the water level on target, delivering the right amount of RO water into the fuge wich overflows into the return . Simple and is working great for me...I just need a decorative basket to hide the RO water bucket next to the tank and I am happy. the only negative thing about the product is the instructions , not the best, so good luck with that.. poor graphics small print and unclear instalation procedure, but the A.T.O is easy to figure out.

Easy to use and when it works it works very well. The auto shut off function simply does not work.

My 2nd Tunze ATO box, and once again a solid performer, in use for about a month now. Super easy to deploy, rock solid dependable. I check the water level daily when I come home, & it's always at the same spot. Tunze outstanding quality. Previous ATO was a JBJ - much cheaper in price & far inferior in quality & dependability. After maybe 10 months of use, it was "locking up" - stuck "on" or stuck "off" - had to power it off at least once to reset it before it would be ok for a few days, then problems again. Read the reviews on the Osmolator, replaced the JBJ with a Tunze & it's been running without any problems at all for 2+ years now. You DO get what you pay for when it comes to ATO. Avoid failures, just get a Tunze & you won't worry anymore.

The Tunze Osmolator Nano, Water Level Regulation System is perfect! Very easy to assemble, easy to install, walk away and let it do its job. No more daily water watching. Just fill your reservoir container when it runs low and let the Tunze O do its job.

Very easy to setup. Great product does exactly what it supposed to, and is very accurate. As soon as the water level drops by any interbvel it kicks right on. Great product worth every penny.