AquaMiracle Upgraded 50W Small Aquarium Heater Fish Tank Heater Turtle Heater Super Mini Aquarium Heater, Dry-Run/Overheating Protection and Memory Function, Dual LED Display, for 5-10 Gal Tanks

Nice little heater- works great in my 5 gallon. I like that you can access the temp controls from the cord and the read outs are bright and clear.

I’ve had this for a few months now, and it works great! Accurate temperature reading, and easy to adjust.

I wish they had a separate probe for temperature, but I don't know that it makes any difference, I've just always used that style. I am using these in both 5 gallon buckets and 5.5 gallon glass aquariums, and they are really easy to set the temperature, have a bright and easily read display, good suction cups (surprised to see these small units come with 2 cups.) as a general rule I do not use glass heaters, but because these are temporary while I set up a sump, I didn't want to spend the money on titanium, and I don't even know if titanium heaters can be purchased at this low of a wattage. The glass seems plenty thick and the large rubber bumpers on the top and bottom stick out enough that they should be pretty durable. I think for the money these are great heaters, and even after I am done with them I'll be happy to have them around as backup. I've been running them for a few weeks so I can't speak to longevity, but they are doing their job, and as long as you do your part placing them properly in an area with good flow, they are very stable. Unlike another small cheap heater I have that came with a tank, these stay in place, so I feel safer about them not falling against some hardscape or getting buried in substrate.

The media could not be loaded. Don’t know why my video is so blurry, but this heater is pretty easy to hide, not much of an eye sore and keeps the temperature at a consistent temp. Easy to set and I can actually see it working. It tells you the temperature of the tank, but I keep the thermometer I got with the tank just to see its consistency. My tank is a 5 gallon and the water has stayed at the perfect temperature. My shrimp hang out on the cord too.

Work very well and fast.

My Cost for heater: excellentAccuracy: measured with another floating thermometer - pretty accurate though it's hard to measure exactly but close enough for me. It is very warm temps where I reside currently so once cold weather hits, if things change on temp, I will update my review.Size: very small which is perfect for my 2.5 gallon acrylic tank.Suction cup holders: work fantastic & are easy to applyTemp Contoller: here's where I knocked off a star. It states in instruction that it is NOT waterproof. Umm this is directly close by, WATER! Chances of water droplets dripping on it are pretty great, even w/great care. This makes me nervous. I will have to devise something to clip this far from water splashes yet at same time making sure to create a loop in cord & perhaps placing something around the cord at loop to act as a collar to catch any water. My suggestion to mftr would be to include a dipped silicone collar on the cord & perhaps a waterproof housing for the temp controller. However due to value vs cost, I am only taking one star for this. Other safety features on temp controller displayed in error codes is very helpful & does work. My water line dipped low & immediately an error code appeared.Overall I love this heater. It is much better than a previous flat one I had purchased in-store prior having no way to set a temp on the other product. I forgot to get video or pic so will update later w/one.

It heats, but the sensor is way off. I have it set to 86 and it think it's at 88, and the actual temp is about 76. I have to bump it way up to get it to 80. Replacing it with a Hygger.

Mine arrived without suction cups, but I ordered some. This heater is extremely accurate. I'm very pleased!