The Best Auto Top Off Reservoir of 2023 – Reviewed and Top Rated
2,411 Reviews Scanned
SaleRank No. #2
MostAqua Auto Top Off for Freshwater Saltwater Aquarium, Fish Tank ATO Aquarium Top Off System
- Compact design, upgraded safer optical sensor, no matter how long you are away, ATO system can ensure that your tank is refilled in time.
- 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.
- Anti-overfill function can avoid flooding your fish tank, more reliable.
- 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.
Rank No. #3
Your Choice Aquatics Medium Auto Top-Off
- Polished Clear and White Acrylic
- 1/4" tube valve stem
- 1/4" push connect ball valve
- Removable Top Lid
- Dimensions: 15"x6"x15"
SaleRank No. #4
Flipper Clear Acrylic Aquarium Water Level Auto Top Off Controller and Re-Filler - Hands Free ATO Fish Tank Water Storage Reservoir System with No Wires
- FL!PPER's Automatic Top Off (ATO) System maintains your aquarium's water level keeping its salinity levels stable and your tank inhabitants happy! As water evaporates throughout the day, the water level in your fish tank drops and needs to be replenished. Flipper's beautiful high-quality clear acrylic ATO automatically tops off your aquarium with freshwater based on your desired water level.
- FAIL PROOF! No Switches, Electronics, or Float Valves! Simple Over Tank Design Uses Physics to Keep Your Water Levels Perfect! Easy set-up with drip feed tube system.
- PERFECT FOR FRESH and SALTWATER TANKS! Ideal for Aquariums Less than 20 Gallons / 75 Liters | Water Reservoir Holds Approximately .55 Gal / 2.1 Liters of Fresh Water | Compatible with Aquariums between 16-20 in / 40-50 cm in Length
- SHOW OFF YOUR TANK! Beautiful High-Quality Clear Acrylic, Looks Elegant on Any Fish Tank!
- FL!PPER Aquarium Products make your hobby easier and more rewarding! Nobody likes a dirty fish tank! Clean it up with Flipper's full line of patented fish-friendly aquarium products! Easy, Hands-Dry Tank Maintenance with Tools that work! Start FL!PPIN' Today!
Rank No. #5
Your Choice Aquatics Small Auto Top-Off
- Polished Clear and White Acrylic
- 1/4" tube valve stem
- 1/4" push connect ball valve
- Removable Top Lid
- Dimension: 10"x5"x12"
Rank No. #6
Your Choice Aquatics Large Auto Top-Off
- Polished Clear and White Acrylic
- 1/4" tube valve stem
- 1/4" push connect ball valve
- Removable Top Lid
- Dimensions: 16"x10"x15"
Rank No. #7
IceCap Dual Optical ATO - Auto Top Off Controller
- Optical sensor may not operate properly in aquariums with high turbidity
Rank No. #8
hygger Mini Intelligent Auto Top Off System with Controller Magnetic Mount Aquarium ATO Pump Water Refill Saltwater Reef Tank Supplies up to 60 Gallon
- 【How does it Work】Automatic top off system with 2 optical sensors monitors and replenishes evaporated water each day. A great time and energy saver for saltwater tank fish keeper especially when you are not at home.
- 【Fail-Safe Design】build in two set of sensors, hygger auto top off keeps track of the water line of aquarium/sump tank. ATO monitoring sensor which keep a constant watch on the water level in your tank, and when it drops below a certain level and the water pump will be activated to automatically refill the tank. While the external sensor monitors reservoir's water level to ensure the water pump not running dry as a result of water drying out.
- 【Overfill Protection】Use a top probe to sense the high water level, the ATO sensor alerts with flashing led light and beeping sound if there is any malfunctioning with the device itself, auto shut off the water pump when the water level exceeds the desired maximum top off level. It to be used in both marine and freshwater aquariums up to 60 gallon.
- 【Enable Drain Out Water】 Comes with a mini DC-powered water pump and a soft hose which can effectively pumps water from bucket/jug with a head height of up to 2 meters. Vice versa. It can also drain dirty water out of the tank. Flow rate: 74gph.
- 【Packing Include】 1 x ATO monitor sensor; 1 x external sensor; 1 x water pump; 1 x 5.9 ft soft hose; 1 x hose holder; 1 x user manual. A read-to-go kit out of box, it is easily installed via a magnetic mounting which can be used on tank glass up to 1/2'' (12mm) thickness.
Rank No. #9
DIGITEN Smart Auto Top Off System, Aquarium ATO, Fish Tank Sump Water Filler Refiller, Automatic ATO System for Aquarium with Pump
- ◕‿ ◕💛 Simple, complete, Smart Automatic Top Off System, aquarium automatic water supply system, super easy installation and maintenance. Suitable for aquariums up to 5/8"(16mm) thick, durable PC material holder to prevent move, adjustable bracket on holder make different water levels possible.This auto water filler suitable for fish tank, statuary pond, aquarium, hydroponic.
- ◕‿ ◕💜 Relay control, Smart ato System precise dual float water level sensor for overfilling protection. When the water goes below the minimum water level , the power will be activated, the pump automatically works, and cut off once the water level reach to maximum. The second float ball will work when the first float ball fails.This automatic water top off system will help you controll the water level reliabelly.
- ◕‿ ◕🐠 Siphon break. The siphon break is optional installation part. It is recommended that the water level of display tank be higher than the reservoir, and DON’T leave the end of the water supply pipe in the water, otherwise, it will siphon after the pump shuts off, if so the siphon break must be installed at the end of the water supply pipe.
- ◕‿ ◕❤️Plug-and-Play with all parts included. Auto Top Off System has everything you need is included, this auto top off system will also come with a pump and a ETL listed power adapter. Safely keep sump water levels stable, no moving parts that can fail.
- ◕‿ ◕🍀 Our smart ato water controller system is suitable for all kinds of fish tanks, aquariums, sumps, hydroponics etc. Fish Tank Sump Water Filler Refiller`s the range of water level from aqurium sump top is 0-17cm or 0-6.7".Suitable for aquariums up to 5/8"(16mm) thick , save you a lot of time to enjoy your life. The Smart ATO Complete Kit will never make water overflow your tank, it is especially suitable for the sump with a lot of evaporation. 12 month warranty!
Rank No. #10
DEHAO Acryli Made Liquid Storage Bucket, Working with Dosing Pump,Auto Top Off System Reservoir Container, 1 Room 0.7 Gallons
- Capability : 0.7 Gallons
- Scale mark
- size:6.2" X 4.3" X 7.5"
- 0.16“ transparent acrylic material, activities cover, with 2 quick connectors, built-in transparent acrylic thin tube
Rank No. #11
SaleRank No. #12
Fzone Aquarium ATO Auto Top Off Refilling System with Dual Optical Sensor for Both Reef and Fresh Tank （360P)
- 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 meters ensuring water delivery to even the biggest aquariums.
Rank No. #13
Kamoer New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium
- Kamoer's new upgraded ATO one 2 se automatic water refill is a great addition to your home fish tank! It has a water refill timeout alarm function to prevent water level overflow due to sensor failure.
- This ATO is equipped with: S1: Optical level sensor to identify water refill, S2(not included,optional sensor): Refill bucket level sensor, S3: Optical level sensor to prevent overflow, DC12V: power input, Pump: connect to refill pump or refill solenoid valve, Power: power indicator (green), Filling: refill indicator (blue), Alarm: alarm indicator (red). Power: power indicator (green), Filling: fill indicator (blue), Alarm: alarm indicator (red)
- In normal daily use, S3 sensor does not work, S3 is installed in the high used to prevent overflow, to play a role of protection. S1 is is to detect the lowest water level sensor, used to identify the refill water. S2 is the refill bucket level sensor, to prevent the refill bucket shortage of water.
- Compared to the old ATO, we have upgraded two parts of this ATO. 1. replaced the original submersible pump with a new anti-dry submersible pump. 2. replaced the new sensor, the new ATO uses a more accurate optical level sensor more responsive, which can effectively reduce the generation of faults.
- Please install the sensor correctly (there is a picture illustration in the main picture), ATO may malfunction will not work. The height difference between the refill bucket and the bottom/master cylinder should not exceed 1.5 meters, and the refill bucket level should not be higher than the bottom/master cylinder level as much as possible .
Rank No. #14
Saricho dosing Container,Aquarium Air Pump Accessories,dosing Pump Liquid containers Liquid srorage Bucket Made of acryli,Reservoir (1.5L/0.4gal Blue lid)
- 1. The length, width and height of the dosing container are 10.8cm*10, 8cm*16.5cm/4.26in*4.26in*6.5in, and the capacity is 1.5L/0.4gal
- 2. The barrel of the dosing liquid reservior is transparent and the scale is clear, which can clearly and accurately observe the addition of liquid in the barrel
- 3. The dosing liquid storage is made of high-quality transparent acrylic material, which is safe and non-toxic
- 4. The dosing storage for liquid is equipped with a 1 meter white silicone hose，the top of the liquid storage is designed as a blue movable round lid. When the lid is opened, it is convenient to add liquid and clean the barrel. When the lid is closed, it can effectively prevent the liquid in the dosing pump liquid storage from volatilizing excessively, or polluting and deteriorating.
- 5. The Aquarium Air Pump Accessories，the overall design of the dosing pump luquid container is simple and beautiful
SaleRank No. #15
MagTool Optical Sensor AUTO TOP Off(ATO) with Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Fresh Tanks(MT-360P)
- Compact size - the entire optical sensor unit ONLY 0.8 inches diameter. The unit works on rimmed and rimless tanks, and as well as sump tanks. The dual precision optical sensors are 0.1 cm apart, which enables it to monitor the level fluctuation precisely (less than 0.6cm difference)
- New and Improved Features - Upgraded ETFT (Extended Time Filling Technology), AFT (Anti-fluctuation Technology), and QST 2.0 (Quick Security Technology). With all these new upgrades combined, our ATOs are far superior and safer. ETFT recognizes your tank size after it first initialized. Working alongside the ETFT, the AFT will be able to decide how long it takes to refill your tank without over-filling it when the QST alarm is triggered
- QST 2.0 provides real-time protection against overfilling and pump dry run. The controller will give a visual alert and stop the pump immediately when it senses a refilling time more than 6 times longer than the time calculated by ETFT. QST can detect a malfunction of the sensor/controller or even an empty reservoir.In version 2.0 we incorporate ETFT feature and not relying on first filling time from version 1. Flooding barely happens when following the instructions carefully.
- Everything you need is included in the package. Powerful magnet supports 15mm thick glass wall. Check valve prevents water from back flowing from the tank. Hose holder allows you easily secure the tubing. Powerful 70gph water pump can lift water up to 2.5 m high.
- 12-months Warranty: There is 12 months warranty for the item. No worries about the after-sale issues.
SaleRank No. #16
5 Gallon Plastic Hedpack with cap
- Hedpak is constructed of high Density polyethylene (HDPE) - molded graduations, in 1/2 gallon increments
- Large 70 mm threaded neck for easy filling
- Fits a variety of dispensing faucets and taps for easy shelf dispensing
- Molded carrying handle on top and finger recess on bottom for easy handling
Rank No. #17
MagTool Aquarium Auto Top Off System, Upgraded Version MT-Duetto2 Aquarium ATO with Dual Optical Sensor for Both Reef and Fresh Tanks(Duetto V2)
- MT-Duetto2 is an upgraded version of MT-360P, features the external controller with a physical buttons, which supports one-touch pause, allowing users to conveniently pause the system during aquarium maintenance. With the built-in buzzer in the controller, users are directly alerted to any issues or risks. In comparison to the previous version, the LED indicator lights have been integrated into the external controller, effectively eliminating light pollution within the aquarium.
- Compact size with integrated 1mm high-precision dual optical sensors. With a footprint of only 0.8 inches, it occupies minimal installation space, making it suitable for both rimmed and rimless tanks of all sizes. The dual optical sensors: one for monitoring water replenishment and the other for anti-overflow protection. This ensures that evaporated water is promptly replenished, maintaining a stable water level in the aquarium while effectively preventing overflow issues.
- Inherits the advanced algorithms from its predecessor, the MT-360P. During initialization, the product can identify the size of the aquarium. Based on the aquarium size, it calculates the required duration for water replenishment and sets the timeout duration for water replenishment alarms. In combination with the anti-overflow sensor and the QST 2.0 anti-overflow algorithm, it provides a dual mechanism to ensure anti-overflow safety.
- All Necessary Accessories -12V DC water pump (1.5x1.5x2.0inch, 74GPH, 8.2 ft head), power adapter, anti-siphon check valve, water pipe (1.5m), mounting cracket, instruction manual, ATO controller
- Reliable After-Sale Service - Provide one-year warranty service for this product (including water pump)
Rank No. #18
Innovative Marine Hydrofill Titanium ATO Auto Top Off - Acrylic Return Bracket
- Dims: 1.49” x 3.62” x 6.61”
- For sumps, rimless or framed tanks ranging from 4mm-35mm in wall thickness
- Acrylic mounting bracket | Thread screws from the inside of the bracket for rimless tanks to achieve a tighter fit
- ¼” barbed fitting
- Built in Anti-siphon feature on the return side of the black pipe
Rank No. #19
SKEMIX Auto Top Off Water Filler Aquarium Mini ATO System Fish Tortoise Tank Water Level Controller No Wiring Float Valve
- When you are on a business trip or traveling, use our water compensator to avoid water shortage in your fish tank, aquarium tank, tortoise tank, or other tanks.
- Better than a float valve, no wiring or power required, takes less space.
- Easy to use, practical and interesting. Just screw the compensator to a water bottle, then stick it to the tank.
- When the water level drops to reveal the shorter tube, the water in the bottle automatically flows into the tank due to pressure difference.
- Each compensator comes with 3 replaceable slots, suitable for 4 kinds of tank thickness: 4mm, 6mm, 8mm, and 10mm. For other thickness, you need to prepare extra gasket.
Rank No. #20
Clscea Aquarium Auto Top Off System Water Filler Compensator Blue, 1pcs
- Great for nano tanks, use with the principle of differential pressure to automatically refill water, simple and practical. You need to prepare 0.5-1.5L (16.9-50.7 FL Oz) plastic water bottles such as EVAIN / Coca Cola / Fiji yourself.
- Built-in noise reduction device can effectively reduce noise. (Note: not completely silent).
- Screw-free, no damage to the tanks. Made of corrosion-resistant ABS material, which is also usable in saltwater. The length of the tubing (manually cut) allows you to adjust the water level.
- Suitable for tanks with 3-10mm /0.12-0.39in wall thickness. Note: Incompatible with rimmed tanks and curved fish tanks; and tanks with 3mm/0.12in or 5mm/0.2in thickness wall need to use the self-adhesive gasket (included).
- A reliable gadget during business trips or travel. Compatible with fish tank, tortoise tank, planted aquarium, saltwater aquarium, etc. For tanks longer than 40cm/16inch, it is recommended to use 2 refillers together.
Last update on 2023-08-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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