Does this heater work in a 3 gallon tank????
644641
Well it overheated my 5.5 gallon and killed my fish so it would probably do the same to a 3 gallon. Please do not buy...
644642
Yes it will work because it is preset to stay at 72 degress I think. It will shut itself off and come back on when temp. drops. I have had no problem with either of mine. Very good heater. Make sure you get you a thermometer so you can keep check on it. Hope this helps.
644643
Yes, I have it heating a 2.5 gallon. Do not use in a tank BIGGER than 10 gallons. ( it's made to heat anything from a 1 gallon to a 10, nothing more)
644644
Yes, that is the size I have. But it did malfunction once and kill one of my fish. It heated to 90 degrees and killed my otto cat (my guppies survived). It hasn't had any issues since. I would suggest buying a thermometer for your tank too so that you can monitor the temp.
912923
I have mine in a 3 gallon tank but I think it would probably work in a 1 gallon. It does not have an on/off switch but I have mine plugged into a timer scheduled to turn on in the evening and off at bedtime.
2029240
I have a 2.5 gallon tank and it took my heater more than 2 hours to warm up. I was also concerned that it wasn't working but it warmed up after around 6 hours I would say. It stays at a constant 76-78 now. The red light is never bright unless the room is completely dark so I wouldn't worry about that unless it becomes competly unlit
1588068
Candra, I am running it in a 3.5 gal tank and it works just fine...smallest one I found with the best warranty.
1530244
Not a problem... I'm using mine in a 6 gallon acrylic tank and I'm very happy with it. Keeps the tank at 75 in a 60 degree room through the winter. I would recommend this heater you wont be sorry.
1801428
I am using it in a 75 gallon tank with cichlids. I'm very happy with it. I don't know about your situation. Good luck
1075812
No, probably not in the sense you mean. This is an eight watt "always on" type of heater, it has no thermostat. The heater will continue to emit eight watts worth of heat whenever it is plugged in. With very few exceptions all small "bowl" or "betta" heaters work this way, the only difference is the wattage. They are available in 5 to 15 watts, you need to match tank size, ambient temperature, and other variables to heater wattage. A thermometer and monitoring is essential, especially at first to determine what temperature a particular heater keeps a particular tank, and if room temperature rises so will the water temperature. The term "preset" is not really applicable to these heaters, preset heaters have a thermostat that is permanently set at a certain temperature. If a heater description uses the term preset without stating a specific temperature (usually 78) then it is NOT a thermostatic heater- it is an always on type. In too small of a tank or too warm a room these can overheat the water. Bettas are very heat tolerant, which is why using these heaters is feasible, but care is still needed. In anything under 3 gallons I think eight watts may be more than needed unless in a fairly cool room.
1492020
This "tank" is only 2 gallons and the surrounding air in your home should be warm enough for any fish that would be suited for this little tank. Also, it's plastic, a heater would probably damage it...
907359
Yes it's rated up to 2.5 gallon. It has an automatic thermostat up to that size any larger, and the heater can't heat it to tropical temp.
1261921
yes. Whenever I have used this heater in my hot house ,I have always used a 20 gal. propane tank and it works very well.
1848
Yes it is. I used mine in a 2 gallon acrylic tank for a Betta , and it worked fine. I recommend checking the heater periodically to make sure it's working properly.
1227274
I had this heater in a 3 gal 360 tank and it kept it too warm. I ended up buying a heater that I could set the temperature.
1659993
it doesnt work in my 10 gallon but works great in my 2 20 gallon tanks sorry
33053
I have this heater in a 1.5 gallon tank and it works perfect. I keep a temp. Strip on the outside of my tank to keep track and it's always at 78 which my betta seems to be happy with. I live in Washington and we don't use our heater so the house stays pretty cold.
909705
I wouldn't recommend it, I used it for a 3 gal tank and it heated it to almost 78-80 degrees sometimes. Luckily I had a thermometer on the outside side of the tank so I just unplugged it if it got too warm. I just had one Beta fish in the tank, if you have any other fish other than a goldfish or a guppy I would definitely try to get a bigger tank so you can put a heater in it :) Hope this helps!
766739
The heater I have is in a plastic pond (200 gal.). The suction cups wouldn't work due to the slimy sides, so I just dropped it in. Works great. If your tank is glass, you should have no worries. I've had our heater for 2 years now and it still works like new.
1675130
Beware of your tank size. I use it at a 1.5Gal bowl under the gravel, room temp is 59F, with this heater, it heats up the water to 72F.