Review on 🐠 Aqueon Submersible Aquarium Heater: Efficient and Reliable Heating Solution for Your Fish Tank by Lori Ortman

Not installed and forgotten! The product has a reasonable price. I think the biggest downside is the temperature marking on this device. There are none other than the tags shown in my photo. Tagging makes the fish a guessing game (life or death). If the knob is to be moved to a temperature between 76 and 80, you have to guess where the 78 degree mark is. It's a trial and error method of temperature control with a separate thermometer! I will work with this device until I reach the desired temperature. There are other factors to consider such as: B. the temperature in your house and whether you have a lid on your aquarium or not. I WISH THE MANUFACTURER CAN ADD A PICTURE OF THE FEATURED PEN ON THE PRODUCT DISPLAYED ON AMAZON! Also make the temporary markers more visible! I had to add my digital thermometer to the tank to get the ACCURATE temp.