Submersible Energy Efficient Controller Thermostat Thermometer Review

I love this heater! I have a 3.5 gallon betta and the betta can be sensitive to temperature changes. I have previously tried two other heaters from Tetra and Topfin (both more expensive I might add) and the temp swings in my tank were insane! This heater is so much better! It turns on and off frequently so the temperature stays very stable; it keeps my tank at a constant 78 degrees Fahrenheit. This heater works great and makes me and my fish happy!

Unfortunately, one of the two tanks I ordered for my Betta aquariums had a suction cup that didn't hold up. They also heated my 2.5 gallon tanks to 80F so I turned them off but assuming it's July and it's over 75F outside and my room has been heating up for a day after I have them had installed. If you recommend using a suction cup glass thermometer in your tank to make sure it's not overheating, or at least only run it when your house is a little cooler. I like their basic look and the fact…

Unfortunately I had to give two stars as I bought this for my 2 gallon tank after reading all the reviews and product description. Unfortunately everything was great the first day, worked well (although the top suction kept falling off but the heater was good anyway), until the 2nd day. Woke up and the temperature was TOO HOT for my tank and my fish died. It was the most disappointing incident. Returned the product immediately. Obviously there is no substitute for my fish (since they were a…

I was reluctant to purchase due to negative reviews saying their fish is cooked to death. Some people just went insane or forgot to take their meds, so you can't always trust reviews. The price was good and delivery took two days. give him a chance At first it didn't work and I thought I had a bad one. Read the manual and they say you'll see the little red light go on and off as the unit heats the water. It turns off when it reaches 78-80 degrees, I didn't have a red lightbulb. Turns out the…

I have a 5 gallon top fin betta aquarium that currently has one suckling fish (the real name always eludes me) and one medium sized black and white freshwater fish ( his name is Mu-Kuh). I'm not a big fish farmer. The water constantly falls below the "minimum water line" at the filter and at the old dead heater (shocker). I'm having trouble finding a suitable, inexpensive replacement heater with constant reviews that don't mention "cook alive". Initially, the tank had 74 degrees (without a…

We received a dwarf fish and had to rush to buy all the supplies. Strangely, the pet store didn't mention that we needed a heater and our little one didn't look happy at all. We ordered this heater for our 3 gallon tank. It's set to 77 degrees (I don't think there's a way to change that setting) and it works great. My Betta is much happier now too. One thing I noticed is that the heater works a lot at night when it's cold, and certainly not as much, if at all, during the day when the room…

I have had about 7 aquarium heaters in the last 4 years. Unfortunately, this one looks like another mediocre heater. It's better than others, I like the thin hard case. The problem with these (as with others) is that they just don't control the temperature accurately. I used it in a 3 gallon pico reef aquarium and now use it in a 1.5 gallon betta aquarium. I had to turn it off several times as it turns on even at temperatures above 83 degrees (see image). This heater tends to fail on the high…

I had this heater in my 10 gallon panda shrimp and fish tank. About 2 months after purchase, I noticed while walking by that my pandas, who usually swim playfully and chase each other, are sitting still and breathing fast. When I opened the jar lid, I felt the warmth emanating from the water. I immediately checked the water temperature with an infrared thermometer and found it to be 93°. I immediately turned off the heater and took it out of the tank. The heater was so hot that my fingertips…