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The Kolibrox Auto Top Off Water Filler is a compact and efficient Aquarium Mini ATO System that simplifies maintaining consistent water levels in fish tanks and turtle tanks. Designed with convenience and durability in mind, this water filler and level controller uses a float valve to automatically regulate water levels, ensuring a stable environment for your aquatic pets without the hassle of daily monitoring.
Automatic Water Level Control
The built-in float valve detects when the water level drops and automatically refills the tank to the ideal level. This ensures the tank remains stable, preventing stress for fish or turtles.
Durable Construction
Made from high-quality, corrosion-resistant materials, this ATO system is built to withstand continuous water exposure and ensure long-lasting use.
Compact Design
Its small size fits comfortably in most aquarium setups without taking up much space, so you can install it discreetly even in smaller tanks.
Saves Time and Effort
Takes the guesswork out of tank care by ensuring water levels are automatically topped off, so you can enjoy your tank without the hassle.
The Mini Auto Top Off (ATO) System is a compact and efficient solution designed specifically for maintaining stable water levels in aquariums. With a reliable, automated water filling function, this system prevents fluctuations due to evaporation, which is essential for keeping fish, turtles, and other aquatic life healthy and comfortable. Its small size and simple setup make it perfect for all aquarium types, from small home tanks to larger setups.
The Kolibrox Auto Top Off Water Filler ensures consistent water levels in your aquarium, automatically refilling as needed to compensate for evaporation. With its built-in float valve, this system provides precise control, keeping water levels stable and ideal for aquatic life. This is essential for fish and turtles, as stable water levels help reduce stress, prevent health issues, and maintain balanced water conditions. The automatic refill feature means no more manual adjustments, giving you peace of mind and a well-maintained aquarium environment with minimal effort.
- Fish Tanks: Ensures fish are kept in stable water conditions, minimizing stress and preventing potential health issues caused by fluctuating levels.
- Turtle Tanks: Maintains the appropriate water depth for turtles, offering them a consistent environment and easy access to water.
The Auto Top Off Water Filler is an ideal solution for maintaining optimal water levels in fish and turtle tanks, ensuring a balanced, stress-free environment for aquatic life with minimal effort on your part.
BunnysReviews
Reviewed in the United States on March 18, 2025
Fits bottles pretty well without leaks. You definitely can’t use too big of a bottle or else I don’t think it would support the weight but it works good for my small 5 gallon tank. Wasn’t hard to figure out. Wouldn’t recommend for large tanks though.
Back Scratcher
Reviewed in the United States on March 16, 2025
So far it is working perfectly.I was worried that my aquarium water level would get too low while on vacation.It has a skim on top type filter, & with the dry weather where I live, I am having to add water due to evaporation weekly.This is just the fix!Will update if there are any issues, but so far I was able to attach a 33.8oz Smart Water bottle filled with treated aquarium water and have it fit perfectly.Would recommend.
John15v1
Reviewed in the United States on January 26, 2025
Auto Top Off Water Filler - Aquarium Mini ATO System, Water Filler & Level Controller with Float Valve - Easy to Install, Durable & No Wiring Needed - Perfect for Fish Tank & Turtle TankThis is a simple design taking advantage of basic scientific principles to make a low tech solution for maintaining a tank level when you are away.The key is to make sure that no air is getting into bottle. At first the water was free flowing from the bottle into the tank despite setting up everything as instructed. Most plastic bottles have a channel down through the screw top. This channel allows air to enter the bottle. I used some teflon tape on the bottle and on the adapter to make sure all connections were air tight.It worked really well as I keep my tank with a high waterline. I did use the tubing, but it never seemed to use that to maintain the water level. Instead, it maintained the water level at the bottom of the dispenser. Which was fine because that matched with where I keep the tank level.I am guessing that either I did not use enough teflon tape or that the tube connection is leaking.This is an elegant solution to the problem of keeping your tank level stable.
Dave
Reviewed in the United States on January 23, 2025
The Auto Top Off Water Filler has been a decent addition to my aquarium setup, but it does come with a few drawbacks that hold it back from being perfect. The concept and design are simple and straightforward, which I appreciate—there’s no wiring needed, and installation was quick and hassle-free. The float valve mechanism works as advertised, maintaining a consistent water level in my fish tank without much effort on my part. However, I’ve found that the durability isn’t quite up to par. After a few weeks of use, the float valve started to feel less reliable, and I’ve had to adjust it a few times to ensure it works properly. It’s not a huge issue, but it does require more attention than I expected for an “automatic” system. Another downside is that the materials feel a bit flimsy. While it gets the job done, I’m unsure how long it will last with regular use. For the price, I was hoping for something a bit sturdier. It’s also worth noting that the system is better suited for smaller tanks—I wouldn’t recommend it for larger setups or high-maintenance aquariums.
MacTX
Reviewed in the United States on January 17, 2025
This top off system is entirely mechanical in spite of the description mentioning 12v and DC. It's affordable and worked surprisingly well.The instructions were really poor, pretty much have to figure it out yourself. Be careful cutting the length for the 2 tubes, there are no extras for you to try again. The short tube you will cut is based on where you want the water level to be and the longer tube goes down well below the tank's water line.The way this works is once the water drops enough to expose the shorter tube to air, that lets water flow from the bottle until the short tube is submerged again, rather ingenious. This works well, if you have a tiny/smaller tank. If your tank is 10 gallons or larger, you're going to be refilling that water bottle often. At that point, you might as well just invest in an electronic auto top system that you can connect to a 5 gallon reservoir.
Morwynn
Reviewed in the United States on January 10, 2025
I got this ATO gadget to keep my rimless 7gal tank topped off and it does that. Simple to use with a standard 16oz soda bottle (make sure you rinse it well with vinegar and RODI water!)
Chris
Reviewed in the United States on April 24, 2025
It works really good for me I didn't know what is going on with the bad reviews thanks
J and j
Reviewed in the United States on October 26, 2024
Something so simple... Doesn't work.The holes are too small to create an airflow, maybe if the litter bottle is full there's enough down force, but once it levels off it rarely lets air back up when the water level is low again .
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