Fzone Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank

this product was purchased after a lot of research, its a durable product, easy to set up, simple and no instructions are needed. does what it says on the tin, material feels good quality. I am really impressed with this and especially happy with the one way valve it comes with so the pipe doesnt suck water back into the top off container.

Really easy to set up and is working great

When it was working it was great, looks good and nice and neat but unfortunately stopped working, I’ve tested the psu and the pump, so looks like it’s the controller, now to try figure out how to get a replacement.My Tunze one was 10+ years old, so I guess the old saying is true. Buy cheap, buy twice

Good bit of kit. Only issue I have found is when doing a water change you have to reset the sensor every time. Which can't always be done straight away due to the water level.

This is a great ato for a marine tank. At first I was skeptical due to the negative reviews but it was so easy to set up and we've not had any problems. It does the top-up without us noticing due to it being so quiet and the led lights really help if you do run into any bother. The only problem is there is no alarm on this but as I said not has any issues so far been using for the last 6 weeks

I have used other ato units in the past, all being based upon the float switch design, as you can imagine the float switch can fail with simple things, however I must say that I’m impressed with the innovation behind this device and over the past two weeks there has not been a doubt in my mind about device failure, great product and I will be a returning customer.

Can definitely spend more on an ATO. I like the built in safety features and it’s a bit more complex than the simple float valve ones but for around a similar price I’d get this over the float valve ones!

You’d be fooled for thinking this is the same as the DD Ocean auto top up, I went for it thinking it was the same product, it’s not, it’s visually the same and all the components are very clever in there mimic, but it’s not the same, it’s not as accurate in its level direction and tend to over and under read, go for the dd ocean one.

This was great and did exactly what I needed so much so I kept if going after came back from my trip. However after 5 months it just stopped working even though the light indicates it should be pumping water. For $80 I was not expecting this to fail so quickly.Update:Seller has reached and resolved the issue, sending me a replacement very quickly. Even though I couldn't find any mention of warranty length certainly looks like they are providing warranty beyond the 30days Amazon offers. Great support

6 Month suspicious Sensor FAILURE?….CUSTOMER Service Assisted me professionally and want to say thank you for making action a priority to a long term loyal customer!Cheryl made sure to send a replacement immediately! Even when I’ve had this for 6 months (again that’s more than 30 days!) And it was great! Cuz I’m going on vacation in 2 DAYS! And have this to help me not to even Worry about the tanks water level!Thank you to Fzone and thank you to Cheryl!And I hope you guys received the failure sensor I am sending you guys back for improving this suspicious sensor failure as well as getting to the bottom of fixing whatever components failed! And making this product on indestructible!

Einfache Montage und tut zuverlässig was sie soll. Nachfüllen von Osmose Wasser in meinem 850l Meerwasser Aquarium.

Prodotto di buona fattura, la pompa è abbastanza piccola da poter essere inserita in una tanica ma potente, gli agganci al vetro sono in acrilico trasparente ed universali per qualsiasi spessore del vetro.Una volta settato fa egregiamente il suo lavoro, va però valutata la durata nel tempo. Numerosi sistemi di sicurezza implementati per evitare che la pompa funzioni a secco oppure che un malfunzionamento faccia traboccare l'acquario. Led di stato sempre visibile, anche abbastanza forte.

Es algo sensible con los caracoles, que al pasar por encima pueden dar falso positivo, pero en general funciona muy bien.