Customer Reviews
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  1. upgrade
    Performance
    40%
    I purchased this nano because I was so happy with the 3155. May of this year.
    It never really worked like it should, it had an electrical problem right away but I thought I could live with it until just stopped a few days ago. My hubby checked the electrical current and it did not have one.
    So I am now purchasing the 3155 to replace this one. If you are trying to decide which one to go with. I HIGHLY recommend the 3155 even though it is more expensive. I wish I had.

    Review by

    Posted on

  2. Nano ATO jury still out
    Performance
    60%
    I bought two of these for my nano reef and for my FOWLR. The one for the nano works great...thenone on the FOWLR sticks and won't always activate (pump not float sensor).
    I ordered a replacement pump, so we shall see how it works

    Review by

    Posted on

  3. Simple and easy set up.
    Performance
    100%
    I purchased this to complete my nano set up. I have a 24 gallon Nuvo by IM and this ATO compliments it well. I installed last night in about 15 minutes. Worked well when I tested it. It fits great in the back chamber.

    Review by

    Posted on

  4. One of the best additions to my tank!
    Performance
    100%
    Definitely one of the best additions to my tank so far. It was easy to set up, and I haven't had any issues with it yet. Throw the pump in a container with RO/DI, set the float where you want it, plug it in, and away you go. Water level is staying constant and salinity is stable. It's great! Going to eventually upgrade to the 3155 and use this for my QT/HT.

    Review by

    Posted on

  5. Does what it needs to do!
    Performance
    100%
    Installation was simple and easy to understand. Strong little pump. Has no problem pushing the water from the bottom of my stand to the top of the tank (JBJ 28 Gallon Nano Cube w/stand).

    Review by

    Posted on

  6. Working great. The magnetic mounting system is fantastic.
    Performance
    100%

    I bought this system to pump some distilled water from a 5 gallon water tank to a container that is about 10ft above. The pump was a bit too large to fit into the 5 gallon tank and I had to use a smaller submersible pump but the magnetic mounting system for the float valve alone was worth buying it.
    BulkReefSupply offers great customer service and support.

    Thank you,

    Aarabo

    Review by

    Posted on

  7. Easy and high quality
    Performance
    100%
    Although pricey, this system includes everything you need to safely and easily automate top offs, minus a reservoir. The builtin safety features keep your tank from overflowing or constantly running the pump in an empty reservoir.

    Review by

    Posted on

  8. Very nice little nano ATO
    Performance
    100%
    Small...perfect for nanos. Not all the bells a whistles as the full version, but for a nano, you can't beat it. Solid product, very strong magnets.

    Review by

    Posted on

  9. Great for a 45 gallon tank with 15 gallon sump
    Performance
    100%
    Ive been using this product for about 6 months now. Has not failed me yet. This is a must have for saltwater tanks, keeps water levels/salinity the same. my only regret is not getting this sooner..

    When i eventually get a larger tank ill get the bigger tunze osmolator for sure.

    Review by

    Posted on

  10. awesome
    Performance
    100%
    Typical tunze product well built and works like a charm, recommend this to everyone with ATO system

    Review by

    Posted on

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