--- product_id: 647590394 title: "Aquarium ATO, Dual Sensor Upgraded Pro Water refilling Kit, Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank Automatic Top Off System" brand: "mostaqua" price: "S/.219" currency: PEN in_stock: true reviews_count: 6 url: https://www.desertcart.pe/products/647590394-aquarium-ato-dual-sensor-upgraded-pro-water-refilling-kit-auto store_origin: PE region: Peru --- # 70 GPH max flow rate 3m max pump head Upgraded optical sensor Aquarium ATO, Dual Sensor Upgraded Pro Water refilling Kit, Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank Automatic Top Off System **Brand:** mostaqua **Price:** S/.219 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium flawless—automate the essentials, impress your aquatic friends! ## Quick Answers - **What is this?** Aquarium ATO, Dual Sensor Upgraded Pro Water refilling Kit, Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank Automatic Top Off System by mostaqua - **How much does it cost?** S/.219 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/647590394-aquarium-ato-dual-sensor-upgraded-pro-water-refilling-kit-auto) ## Best For - mostaqua enthusiasts ## Why This Product - Trusted mostaqua brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Anti-Overflow Safety:** Built-in flood prevention protects your aquatic ecosystem effortlessly. - • **Powerful Whisper Pump:** Delivers up to 70 gallons per hour with ultra-quiet operation. - • **Smart Optical Sensing:** Ensures precise water level detection for worry-free tank maintenance. - • **Innovative Tube Holder:** Patent design secures refill and air tubes neatly and reliably. - • **Hassle-Free Setup & Support:** Compact design with 90-day warranty for peace of mind. ## Overview The MostAqua Aquarium ATO200 is a compact, dual-sensor automatic top-off system designed for both freshwater and saltwater tanks. Featuring an upgraded optical sensor and a whisper-quiet pump with a 3-meter head and 70 GPH flow rate, it maintains optimal water levels while preventing overflows. Its patented tube holder design ensures tidy installation, backed by a 90-day warranty for reliable, long-term aquarium care. ## Description The ATO system automatically maintains the water level in the aquarium, ensuring a stable and healthy environment for aquatic life. ## Features - 【Smart ATO】Compact design, upgraded safer optical sensor, no matter how long you are away, ATO system can ensure that your tank is refilled in time. - 【Top Off System】The unit comes with a micro whisper pump, small but powerful, with a maximum head of 3 meters and a maximum flow rate of 70 GPH. - 【Easy to Use】Anti-overfill function can avoid flooding your fish tank, more reliable. - 【Patent Design】The patented design of the tube holder can not only fix the re-filling tube but also can be used to hold the air tube. - MostAqua offer 90 Days warranty. If you are not happy with our Aquarium ATO or receive a defective unit, we will propose you satisfactory resolution. Please feel free to contact with us if any questions or concerns. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CD1LKB67 | | Best Sellers Rank | #308 in Aquarium Water Pumps | | Date First Available | July 28, 2023 | | Item Model Number | ATO200 | | Manufacturer | MostAqua | | Package Dimensions | 6.26 x 6.26 x 2.52 inches; 13.12 ounces | ## Product Details - **Brand:** MostAqua - **Color:** Clear - **Included Components:** ATO Controller, Water Pump, Power Adapter, Tubing, Tube Holder, User Manual - **Item Weight:** 0.37 Kilograms - **Manufacturer:** MostAqua - **Material:** Acrylonitrile Butadiene Styrene (ABS) - **Special Feature:** Lightweight, Saltwater or Freshwater, Self Watering - **Specific Uses For Product:** Indoor - **Style:** ATO A2 - **Vivarium Type:** Aquarium ## Images ![Aquarium ATO, Dual Sensor Upgraded Pro Water refilling Kit, Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank Automatic Top Off System - Image 1](https://m.media-amazon.com/images/I/61fe80bHzLL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Life savor, or back *by on Reviewed in the United States July 3, 2026* I have been picking up jugs of water for years to refill my saltwater tank and keep it at the right level. THIS product has SAVED my back! Works extremely well the hose it comes with seems better then most hoses you usually get with these types of items , great price, and was easy to install! 10/10 recommend! ### ⭐ Unreliable ATO *by on Reviewed in the United States April 18, 2025* Randomly the sensor does not signal the pump to fill. There are no LED warnings on the sensor when this occurs and the sensor is clean. This faulty ATO requires I look at the sump once a day to make sure it is filling properly. The workaround to this unreliable ATO is to power off and back on and magically watch the pump start filling to the sensor level without issue until another power cycle is required. I highly recommend looking for another ATO for your aquarium needs. ### ⭐⭐⭐⭐⭐ Works great *by on Reviewed in the United States April 20, 2026* I have several of these they work great (unless snails cover the sensor) make sure to get the dual sensor though had a lot of problems with the single sensor 1 ## Frequently Bought Together - MostAqua Aquarium ATO, Dual Sensor Upgraded Pro Water refilling Kit, Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank Automatic Top Off System - CaribSea Arag-Alive 20 lb Fiji Pink Sand - Seachem Reef Glue Cyanoacrylate Gel Coral Frag Mounting, 20g (001167) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/647590394-aquarium-ato-dual-sensor-upgraded-pro-water-refilling-kit-auto](https://www.desertcart.pe/products/647590394-aquarium-ato-dual-sensor-upgraded-pro-water-refilling-kit-auto) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-08-29*