Easy to use and Reliable By Ali on 11/2/2012
Ali would recommend this product to a friend
Replacing the water evaporated form your tank is a chore and nightmare for every one in the hobby. so when it came for me to setup my 120 gallon tank this was one of the first piece of equipment i got for my reef. i must say simple to install and reliable it has never failed on me or flooded my basement. if you want simple reliable this is for you.
nice By Joe on 10/28/2012
Joe would recommend this product to a friend
Bought this after getting fed up with making top off water everyday. A little pricey but it comes with everything you need and is easy to set up. The optical sensor is nice and was a selling point for me.
GRRREAT PRODUCT By harry on 10/14/2012
harry would recommend this product to a friend
I have had saltwater aquariums for 20+ years. Iwork offshore and overseas.I have to depend on someone to check on my tank on a daily basis to add water. This Product was very easy to set-up. I tested it by turning off power, removing water and adding water, and it works great. This tank can go a week without supervision now...Probably the best piece of reef equipment i have ever bought.....Well worth the price!!!!
Best ATO By Chris on 10/13/2012
Chris would recommend this product to a friend
Seems like lots of money compared to some of the other ATO but it's worth it. Nice to have something that is reliable and gives great piece of mind that it's just going to work.
no issues By james on 9/22/2012
james would recommend this product to a friend
I've had mine for over 1yr. It's never given me the slightest hiccup.
I use a small reservoir for top off water (2.5g jug). My jug has run out of water on a number of occasions. The pump included in this unit is very durable. I think most other pumps would of been smoked by now.
Works Great as an RO/DI ONLY Top Off By Toby on 9/20/2012
Toby would recommend this product to a friend
Works great as an RO/DI ONLY top off but I would not trust it to top off with KALK. The optical sensor works great! This product will help you enjoy the hobby.
Awsome Top off system and works right out of the box! By Ken on 9/14/2012
Ken would recommend this product to a friend
Just set up the Tunze top off system what a pleasure to install and complete no other parts needed!
Great product By Steven on 9/4/2012
Steven would recommend this product to a friend
This is one of the best aquarium devices. Just add water to the top off container once a week and forget about it. Easy to set up and the magnet holders work great.
Set and Forget By nspence84 on 9/1/2012
nspence84 would recommend this product to a friend
Have been using for a week now and love it. Don't have to worry about if the wife topped off the sump or not while working a 16 hour shift. I come home to a always level sump. Made life easier!
I finally caved, and I dont regret it! By amber on 8/25/2012
amber would recommend this product to a friend
I heard people talk about auto top offs or ATO for months but balked at the prices.
I finally got fed up with making buckets of water and dripping it all over the place every day to top off my tank, not to mention the stress it put on my fish if I forgot to do this one day and the water level dropped!
I finally splurged and bought this one after reading all the positive reviews and I have to say I am in love!
I bought an attractive kitchen trash can with a lid to fill with water and keep it next to the tank. I only have to fill it once a week which is awesome. It has even run dry and the pump still works like a charm (not that I recommend doing that).
Its a sturdy easy to use and worry free way to keep your tank at the optimum levels and I highly recommend it!
Love my Osmolator! By kenny on 8/25/2012
kenny would recommend this product to a friend
Purchased my Tunze Osmolator for my 70 gallon rimless cube reef tank about eight months ago....it keeps my Specific Gravity at 1.025 and it is very easy to set up, one of my favorite purchases for my tank. No more manual dosing top off water for me...Purchase an extra pump as you may need a new one in 8-12 months.
Great System By Will M on 8/13/2012
Will M would recommend this product to a friend
I never realized how much easier keeping my tank topped off would be until I ordered this unit. Excellent system and as long as I weekly fill up my top off water container I'm set. No more bi-daily pouring RO into my sump. A+!