---
product_id: 503361635
title: "ATO Aquarium Osmolator Automatic Filling System with Pump, Aquarium Water Filling with Dual Optical Sensor, QST, ETFT Intelligent for Reef and Plant Tank"
brand: "fzone"
price: "KD 25.20"
currency: KWD
in_stock: true
reviews_count: 5
category: "Fzone"
url: https://www.desertcart.com.kw/products/503361635-ato-aquarium-osmolator-automatic-filling-system-with-pump-aquarium-water
store_origin: KW
region: Kuwait
---

# <1mm dual optical sensors 0.7 inch nano size 74 GPH pump, 2.5m lift ATO Aquarium Osmolator Automatic Filling System with Pump, Aquarium Water Filling with Dual Optical Sensor, QST, ETFT Intelligent for Reef and Plant Tank

**Brand:** fzone
**Price:** KD 25.20
**Availability:** ✅ In Stock

## Summary

> 💧 Stay flawless, stay flooded — the future of aquarium care is here!

## Quick Answers

- **What is this?** ATO Aquarium Osmolator Automatic Filling System with Pump, Aquarium Water Filling with Dual Optical Sensor, QST, ETFT Intelligent for Reef and Plant Tank by fzone
- **How much does it cost?** KD 25.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/503361635-ato-aquarium-osmolator-automatic-filling-system-with-pump-aquarium-water)

## Best For

- fzone enthusiasts

## Why This Product

- Trusted fzone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Filling Tech:** EFTT & AFT prevent overfill and unnecessary pump cycles, saving energy & stress
- • **Compact Nano Design:** Sleek 0.7-inch profile fits rimmed & rimless tanks effortlessly
- • **Advanced Safety Alerts:** QST 2.0 instantly notifies and stops pump on malfunctions or dry runs
- • **Powerful & Reliable Pump:** 74 gallons/hour capacity with 2.5m lift supports even large reef and plant tanks
- • **Precision Dual Optical Sensors:** Real-time water level monitoring with <1mm accuracy for flawless stability

## Overview

The FZONE ATO Aquarium Osmolator is a cutting-edge automatic water filling system designed for reef and plant tanks. Featuring a compact 0.7-inch design, dual precision optical sensors with <1mm accuracy, and advanced technologies like EFTT, AFT, and QST 2.0, it ensures ultra-stable water levels and prevents overfilling or pump damage. Its powerful 74 GPH pump with 2.5-meter lift capacity supports large aquariums, while strong magnets and included accessories enable easy installation on rimmed or rimless tanks. This system delivers reliable, real-time water management with smart safety alerts, making it an essential upgrade for any serious aquarium enthusiast.

## Description

FZ-ATO

Review: Lo utilizo para mi acuario marino y la verdad ni un sola queja. Funciona a la maravilla desde el primer día.
Review: Perfect a must for every marine tank

## Features

- Small in size; install in a compact space, install in both rimed & rimless aquariums or sumps. ATO is nano at only 0.7 inches.
- Includes <1mm dual precision optical sensors, watches the water level in real time, ensures the aquariums water fluctuation is less than 0.6 centimeters.
- New technologies that allow the ATO to be more reliable; EFTT(Extened-Filling-Time Technology), AFT(Anti-fluctuation Technology) techology, & upgraded QST 2.0 (Quick-Security Technology). EFTT can recognize your aquariums size & will dertimine how long it takes to fill to the desired level. QST alerts you in real-time when the ato is finished & prevents over filling. AFT measures the water level & ensures the ATO doesn't activate the pump unnecessarily.
- QST 2.0 provides real-time protection against overfilling & won't allow the pump to run dry. The ATO controller will give a visual alert & stop the pump immediately when it senses a refilling time more than 6 times longer than the time calcualted by EFTT. QST will detect malfunctions of the sensor, controller or if you have a empty reservoir. Version 2.0 includes new technology making our ATO’s the most safe option.
- All accessories included in the package. Strong magnets can support aquarium wall thickness up to 0.78 inches (20mm). Check valve prevents backflow & will not drain your main display. 74 gallon per hour water pump will lift water up to 2.5 meters ensuring water delivery to even the biggest aquariums.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YVP3L22 |
| Best Sellers Rank | #34,412 in Pet Supplies ( See Top 100 in Pet Supplies ) #165 in Aquariums |
| Brand Name | FZONE |
| Color | Green |
| Customer Reviews | 4.1 4.1 out of 5 stars (902) |
| Flow Rate | 1.23 Gallons Per Minute |
| Included Components | Strong magnets, check valve, 74 gallon per hour water pump |
| Item Dimensions L x W x H | 35L x 20W x 7H centimeters |
| Item Type Name | water refill |
| Item Weight | 63 Grams |
| Manufacturer | FZONE |
| Material Type | Plastic |
| Maximum Lifting Height | 2 Meters |
| Model Number | FZ-360P |
| Power Source | Corded Electric |
| Product Style | Classic |
| UPC | 764595878146 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** FZONE
- **Colour:** Green
- **Material:** Plastic
- **Product dimensions:** 35L x 20W x 7H centimeters
- **Style:** Classic

## Images

![ATO Aquarium Osmolator Automatic Filling System with Pump, Aquarium Water Filling with Dual Optical Sensor, QST, ETFT Intelligent for Reef and Plant Tank - Image 1](https://m.media-amazon.com/images/I/61b5Wpn3czL.jpg)

## Questions & Answers

**Q: Any time the pump looses power and reboots when it gets power back does it have to refill all the way to top line for measurement? Or is it a one time**
A: Yes it has to refill to the top sensor so it can recycle, also if water level goes way below sensor when it reboots it will only pump 3 times then red light comes back on so unplug and plug back in so it can pump remainder water to reach level you might have to do this several times( i hope not) usually once is sufficient, hope this helps.

**Q: Can I use it on a 40 gal ?**
A: Yes, it will work fine.

**Q: Will this still work if I put a longer tube on it?**
A: Sure

**Q: How do you install hose clamp on a rimmed tank?**
A: Just rotate it. It will fit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***A on 4 January 2026*

Lo utilizo para mi acuario marino y la verdad ni un sola queja. Funciona a la maravilla desde el primer día.

### ⭐⭐⭐⭐⭐ Review
*by R***D on 23 November 2025*

Perfect a must for every marine tank

### ⭐⭐⭐⭐⭐ Review
*by た***じ on 4 December 2023*

4月に購入して半年以上使用しましたが、30cmキューブ水槽で問題なく稼働しています。 冷却用のファンを付けているので毎日1センチ程度は水位が下がりますが適宜反応して給水しており、12Lのタンクに繋いでおおよそ3週間程度は持ちます。 半年間で赤点灯で給水しなくなるエラーが3回ありましたが、いずれも電源の抜き差しで復旧しており、今のところ給水が止まらない障害は起きていません。 水換えの時にセンサー周辺を掃除しないと苔により反応が悪くなるようで、完全にノーメンテとはいきませんが、毎日の足し水と比べたら相当な手間が省けます。 しいて言えばエラーの原因が不明なので少し不安は残りますが、1週間以上様子を見れないような状況でなければ問題はないかと。 同じ仕組みを自作しようとしても価格程度のコストは掛かると思いますし、似たような製品が少ない中で高値でもなくおすすめできる商品だと思います。

## Frequently Bought Together

- Fzone Aquarium ATO Auto Top Off Refilling System with Dual Optical Sensor for Both Reef and Fresh Tank （360P)
- Seachem Reef Glue Cyanoacrylate Gel Coral Frag Mounting, 20g (001167)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-16*