HITOP Thickened Glass Aquarium Heater: 50W 100W 300W Upgraded Fish Tank Heater with Controller, Fish Tank Thermostat Heater for Seawater/Fresh Water 5-65Gal

Keeps my 55 gallon turtle tank warm

I am using this 100 watt heater in a 20 gallon freshwater aquarium. I like how easy it is to change the temperature settings with just the press of a button and no more need for putting my hand in the aquarium to turn the temperature dial. I also like how easy it is to read these temp settings which are displayed in both Fahrenheit and Celsius. There is also an On/Off indicator light so I can know when it is actually heating. I only wish the cord was a bit longer and/or the settings button wasn't so close to the actual plug.

Easy to install, quiet, and keeps my tank at a perfect 80 degrees.

Amazon Vine sent me this heater for my 55 gallon cichlid tank, and I do have to say that it was easy to install and also easy to adjust and set the temperature control. The functionality of the suction cups seems adequate, however after a few weeks of use the durability and safety are untested, because heaters seem to have issues after roughly 6 months to one year for me.

This heater is pretty much as advertised. Nice sturdy construction with a simple control interface. Attaches easily to a tank. I haven't had it on much as the ambient temperature in summer is high enough, but I will use it in winter. Will update review with photos.

Our beta fish lives outside in a half barrel pond. Our night temperatures at times goes down to the high 60s or low 70s so I thought this heater might keep my fish a little more comfortable. So far it seems to be working as expected.Everything you need to set up the heater is included. There are clip on suction cups that help you adhere the heater to the side of your setup. I was just sure to face the temperature setting so they were visible to me.The quality of the heater is great. I do like that it is glass. The set temperature is marked by LED lights on the glass heater. The temperature you set is well marked in either Celsius or Fahrenheit. You press the button to increase the temperature with each press, and the LED lights let you know what temperature has been set. For example 3 LED lights are 76 degrees Fahrenheit. If you overshoot your temperature you can just keep pressing the button until you cycle back to the lowest temperature. Over all easy to set up.

This heater works great, easy to read and keeps our fish tank at a constant temperature. Well made and seems durable. Works well for a small tank. Good value.

Overall impression: I like this heater a lot as long as fine-tuning the water temperature is not an issue. There were some problems, though. The packaging was insufficient and one of the suction cups broke. That was okay as I'm using it fully submerged at the bottom of a tank but it needs better packaging (exterior brown envelope and lightweight box were not enough although there was a foam sleeve for the actual glass part.) Second and bigger problem is that the temperature control is not continuous. You push a button to jump from one level to the next. This limits your control to those available levels. This may be fine for most usages. The heater appears to be very solid and I do like the feature of being able to control the temperature from outside the tank vs. pulling out a wet unit and setting a dial. Finally, there were no instructions in the box. I referred to the Amazon page to figure it out. The temperature is very stable once set. I think the price point is very good for the heater, and I like that it is fully submersible. The 50 watt one which I tested will keep a small amount of water at a set temperature which makes it good for terrariums and for aquatic reptiles and amphibians which need smaller amounts of water. The cord is a little short for where I put it.