2 gallon tank heater.

[cyrix]

I'm in need of a heater for a 2 gallon tank that has temp control. All the ones I've found didn't have any temperature control and I'm just not comfortable with that. Any suggestions on what to buy?

[jaysee]

.....a 25 watt? I don't think they make them smaller than that with a dial.

[invadertoast]

I use the small Tetra ones from Wal-Mart with no temp control and they work great, I couldn't find ones with a dial that small either. I'm running three of them, I have two 2.5 gallons and a 4.5 gallon. I was skeptical but I've got no complaints about them! They have a light that changes from green to red to let you know when it's on, I like that feature.

[Deleted User]

I also use two little 7.5w ones w/o a temperature setting, one in each of my little 2.5g betta aquariums. Though I cannot adjust the temperature, I do like them and the fish are doing well. They are Hydor brand. I have the bigger 15w one in a 6g tank and like that one, too.

[mike494]

aqua clear makes a 25 watt heater that is adjustable. i bought mine from pet mountain to use in my 5 gal hex tank

[Jaster]

I use a 25w Visi-therm for me 3 gallon. Works great. I have an issue with non-adjustable heaters too. I've heard so many different things about them (good and bad) that I decided it just wasn't worth the risk. Being a bit of a control freak, it always just annoyed me that I couldn't adjust the temp. lol

[Sarkazmo]

The Hydor flat heaters have no temp control or thermostat, they just heat the water ALL the time, raising it a few degrees above room temp. The Tetra heater mentioned above is not adjustable but it DOES have a thermostat. It's set to 78F and stays there. I have four of them and they work like a charm! They're 50W and powerful enough for a 10G tank but work great in small tanks as they're only a little over 5" in length. They have a RED LED that indicates heating and a GREEN LED that indicates that the water is at temp. They may not be adjustable but they're hella nice. Being that they're 50Watts they're capable of keeping a small tank at 78F even if the room is quite cool/cold.

Sark

[DrNic]

Most heaters just have an analog knob that you have to play with to the the water temp where you want it. I've seen a few models which have a digital read out but they tend not to be very accurate, usually -/+ 5 degrees or so.

[cyrix]

Thanks for the feedback. I was nervous about using a heater with no adjust-ability on a small tank like that. But I bought one anyways. It will do until I get the 20 gallon ready for my betta Prometheus.