The person I heard it from said it won't heat up tanks 20 gallons or larger very well/consistently. I have also heard about, for larger tanks, this one isn't really recommended. The indicator light lets you know when water is being. Nothing like the review said (although some incidents were after a week or so.) Wouldn't say I absolutely recommend this, but if you are on a budget and looking for a heater for at least a 15 gallon tank, this one works. Tetra Submersible Heater has an electronic thermostat that automatically maintains water temperature. (Having an aquarium hood would be a good idea.) I've noticed the heater will turn off at 80 F, and won't let it go below 78 F. I waited a few hours after putting the heater in the tank before actually plugging it in. Much more reliable than the thermometer strip I first bought.Īround 5 pm, tank temperature was sitting at 75. My #1 concern was overheating, so I also bought the glass thermometer. Bought the Tetra heater and quickly head on back. While tightly under budget and the temperature of my room fluctuating, (mom suddenly turned on the ac to below 78 F, it's getting hot where I live.) I head on over to Walmart that was only walking distance away. Tetra HT-Series Submersible Heaters are created especially for ease of use in your aquarium. The three main issues I saw were: not heating at all, working but suddenly stopped working, and overheating. The HT10 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish. It will be red when heating and green when the proper temperature has been reached. I've seen many reviews/videos on this one, both the Aqueon and Tetra preset heater. Brand: TetraFeatures: All Tetra HT heaters have indicator lights to let you know when the heater is on.

Tetra submersible heater