Hygger 50W Mini Inline Submersible Quartz Glass Aquarium Heater

Shae: Works pretty good but I do have to set it higher than the temp I want as it struggles a bit to keep the tank up to temp. For instance I have it set at 82 and the water temp reads 78, 80 on a good day.

United States on May 23, 2023

Lonnie Rouse: I searched and read many reviews before I purchased this one. I love the compact design, the easy to install (comes with suction cups). I have it in the back filter section of my Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration. It keeps my aquarium within the range needed for my glofish, shrimp, and snail. PRO- small, explode proof Quartz Glass tube, Fully Submersible, and auto on/off. CON- I had to place a piece of tape on the control knob as it easily moves if you move the cord (my shark vacuum kept hitting the extension cord and the knob would somehow get turned up or down), luckily I kept an eye on the temperature daily for the first week, just to make sure I didn't cook or freeze my little eco system. If needed, I would buy this again! Great value and click coupon was an added bonus for my purchase.

United States on Apr 09, 2023

Ralph: The heater is in a 10g Shrimp/Pygmy Cory tank and the temp was easy to adjust. A set heater of 78f was too warm for the 10g. This allowed me to get the temp to a constant 72f. It arrived a week early.
revised Feb25-22> I bought a second one because the first one worked well. I used the next heater (@74f) to replace a set 78f heater in a 15G Pea Puffer tank. The set-78 was more 79f all the time, too warm.

Canada on Jan 31, 2022

Amazon CustomerAmazon Customer: First off I was NOT paid for this review and it is NOT part of a promotion. I am leaving this review because I wanted to give my assessment with the product.

I am using this on my 7 gallon cube tank with a Hugger sponge filter (which has also been great!). The neocaridina shrimp I keep do fine at lower temps but with winter coming I wanted to help maintain a temp around 72 in the tank and our house gets cooler than that (we let the temp in the house get to 65 at night and is never higher than 68 in the winter). This heater has performed perfectly so far. The temp is incredibly accurate on the dial. I check this every week when I do water changes so I know I'm adding new water with the same temperature.
I love the compact size. It doesn't take up a lot of space in the tank and being able to adjust the dial without having to stick your hand in the tank is a great feature. I wish more heaters had that feature.

The red light does blink a bit before turning a solid red when it turns on but I've had this for almost 2 months now and seen no issues and the temp has stayed consistent. Also, the top suction cup had some trouble sticking at first but it was a bit curled so I...

United States on Nov 10, 2021

Tilliebird: *UPDATE* After purchasing two thermometers (to make sure the temp reading was correct on my first one and that I am fairly assessing this heater's ability to do its job) I have determined that it does heat consistently (my house can be cool at night so I was worried about that) BUT it is not able to heat a 5-gallon tank above 80 degrees. For fun (before I put a fish in of course) I turned the the controller to 86 degrees but the tank temp didn't change even after several days. So I am leaving this at 4 stars but if you need warmer water in your tank I would look elsewhere.

PROS:
- Good size, able to fit in a narrow spot in my 5-gallon tank
- Heats Consistently (80 degrees or less)
- External controller with obvious temperature settings
- Easy to set up and use

CONS:
- Not able to heat a 5-gallon tank above 80 degrees (for reference, my house is usually a bit cooler - 67-71 degrees, it's an old mildly drafty house so not really able to be more specific - perhaps if your house is a bit warmer the heater will be able to heat higher since it's not fighting a colder general water temp?)

POSSIBLE CON if it isn't doing what it is supposed to do
-...

United States on Dec 11, 2019