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Tim Five
Reviewed in the United States on May 5, 2025
I’ve been using this 500W heater in my 100-gallon tank, and it works great. Heats up quickly and evenly, and the compact size makes it easy to hide. The LED controller is simple to use, and I love the safety features—auto shut-off if it overheats or runs dry. It even remembers my settings after a power outage. Reliable, easy to install, and perfect for larger tanks. Highly recommend!
Meinthemirror
Reviewed in the United States on May 26, 2025
I like that it's simple, no gimmicks. Just a plus and minus button to set the temperature. No flashy colors, no goofy logos. It just works! It has a green ring to let you know it's at the proper temperature and a red ring when it's heating. I grabbed the 100W for around $20, and I'm loving it so far. I have a similar heater that almost killed my whole tank because it didn't have a hole to let air bubbles out of the top. It caused the temp sensor not to read right and almost boiled my fish. This unit has a hole on top to prevent that from happening. It also has a low water sensor! It beeps and shuts off the heater if the water is too low. It's honestly a pretty good deal. I really hope it lasts. I'll probably pick up another one for my other nano tank.
Jody H.
Reviewed in the United States on May 21, 2025
Great heater!!!!
Tibby
Reviewed in the United States on April 27, 2025
I grabbed this 100W heater for one of my spare tanks that I’m currently cycling, and I am seriously impressed. The compact size makes it easy to hide behind decor without it sticking out like an eyesore, and the design feels much sturdier than some other heaters I’ve used. It heats up really fast and evenly, which is exactly what you want when you're trying to keep everything stable during cycling.I especially love that it has the digital external controller. It’s so much easier to tweak the temperature without sticking my hand in the water or messing with tiny knobs. I can bump it up or down a degree with just a click, and it switches between Fahrenheit and Celsius easily if you need it. The screen is big and bright, so even from across the room I can check if everything’s good at a glance.The safety features were another huge selling point for me. It has overheating protection, out-of-water protection, and it beeps to warn you if something is wrong. That gives me a lot more peace of mind, especially since I have multiple tanks running and can’t babysit them 24/7.Setup was super simple too. The suction cups are strong, and I had it mounted and running in just a few minutes. I’m only using it on about 15 gallons of water right now, but it holds temperature perfectly steady. Also really appreciate the memory function — if the power flickers or goes out, it just picks back up at the same temp without needing to reset anything.Overall, this is a fantastic heater, especially if you want something you can really control without a lot of hassle. I’m planning on getting a few more once I set up my other spare tanks.
The Hunters
Reviewed in the United States on April 26, 2025
I like this heater. It has a pretty large display and fits well in smaller or larger tanks. I also like the water detection alert as well. The plastic cover around the heater is okay but probably not to everyone's liking. There are gaps around the heater so small that some smaller tank inhabitants can get into the plastic like snails or shrimp without you being able to see them.Overall, the heater works well and has some pretty great features. It will be a good addition to my guppy tank but I will probably keep it out of my snail and shrimp breeding tanks so I don't get moss, plants, or fry in the heater and cause any issues.
J. F. E.
Reviewed in the United States on April 16, 2025
This tank heater is excellent. It is extremely easy to install taking only minutes. It.is very well v constructed and appears to be durable. The glass tube is.protected by a hard plastic shield. I watched its first cycle and was surprised at how rapidly.it heated the tank. The controller is simple to use, read and very accurate. I checked its accuracy with a laser thermometer. The controller also.has a.mounting hole in the back for wall.mounting by screw or nail. Well.packaged. Arrived a day ahead of advertised schedule.
Nova Gray
Reviewed in the United States on April 16, 2025
This heater solves two problems in one: consistent tank heating and reliable temperature display—all without extra gadgets or battery replacements.FUNCTION & PERFORMANCEThe heater holds temperature well and is very simple to use with only two buttons for adjusting the heat. The digital readout shows both the actual water temp and the target temp, which takes the guesswork out of setup. It also has an automatic shut-off feature, which gives me peace of mind—especially since I’ve definitely started water changes and forgotten to turn off the heater in the past.SAFETY & SIZEI really appreciate the protective cage around the heating element. It prevents accidental burns to equipment or livestock, especially during maintenance. Another plus is that it’s shorter than most traditional heaters, making it easier to position in shallow tanks or those with thick gravel beds.DISPLAY & MOUNTINGThe external temperature display is one of my favorite parts. It hangs from the cord and can be mounted to the wall using a nail or push pin—no batteries, no activating screen with a touch, and no clutter on the tank glass. It’s much more convenient than my other digital thermometers.AESTHETICSFunctionally, this heater is great. Aesthetically? Not so much. The unit is bulky and has a very utilitarian look. The brand name is printed in bold, high-contrast lettering on the device, which makes it stick out even more. This might not matter in a utility tank, but it clashes with a clean, natural aquascape.ProsDual-purpose heater and thermometerAutomatic shut-off prevents damage during water changesShorter length fits better in small or shallow tanksCage protects equipment and livestockExternal digital display (no batteries, no clutter on tank glass)Easy two-button operationCons– Bulky, utilitarian design– Bold branding is visually distracting– Only basic controls (no timer or custom modes)
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