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Old 09-28-2010, 10:13 AM   #1 
dew
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heaters

what kind of heater do you recomend for a three gallon tank?
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Old 09-28-2010, 10:42 AM   #2 
blumunki87
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I have a 3 gallon tank and I just bought a heater from walmart that will work for a 2-15 gallon tank. It's nice and small, not huge and cumbersome, and works rather well. I just got it last night, but Clancey's tank has maintained his temperature.
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Old 09-28-2010, 11:22 AM   #3 
BeccaBoo
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I have a 2.5 gallon tank and I use a Top Fin 25w adjustable heater that I bought at Petsmart. I've been using it for quite a few weeks now and it keeps my guy's tank at a steady 80 to 81 degrees.

Whatever brand you choose, I would definitely go with one where you can adjust the temperature. I originally had a 10w that wasn't adjustable and was supposed to keep the tank at 78* but the water got up to around 85* even with the light off, so that's when I took it back and bought the Top Fin.
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Old 09-28-2010, 09:37 PM   #4 
dramaqueen
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25 watt Marineland stealth visitherm.
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Old 09-30-2010, 12:51 AM   #5 
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A good rule of thumb is about 1-3 watts per gallon. They have "mini" heaters but I don't suggest those since it automatically adjusts to 7 degrees above room temperature and doesn't allow you to set the temperature. Also with that is drastic temperature changes can stress your fish!

If you have a 3 gallon, Marineland stealth heaters in my opinion are the best. They are fully submersible and you can adjust the temperture to what is best for your fish (i.e 76 or whatever). Get the 10 watt and put it on the otherside of the tank away from the filter to allow good circulation. Hope that helps :)


P.S tip for heaters: when adjusting to a higher temp such as 76 F and for example your temperature (before adding the heater) is 70 F, slowly increase the temperature. Set it to 72, wait a few hours, then 74 and wait another few hours, then 76.

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Old 09-30-2010, 11:18 AM   #6 
Lion Mom
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"A good rule of thumb is about 1-3 watts per gallon."

Really? I have always heard/read it is 3 - 5 watts per gallon is the guideline.
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Old 09-30-2010, 11:22 AM   #7 
dew
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Thanks. Is a 25 watt heater good? I'm getting my betta in about 2 weeks. I can't wait!
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Old 09-30-2010, 11:26 AM   #8 
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Quote:
Originally Posted by dew View Post
Thanks. Is a 25 watt heater good? I'm getting my betta in about 2 weeks. I can't wait!
Yes, it is. A 25 watt heater is what I use in my 3 - 5 gallon tanks and they work PERFECTLY!!!
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Old 09-30-2010, 03:28 PM   #9 
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I guess "rule of thumb" probably wasn't the best way to phrase it. I use 1-3 watts for my tanks because I don't have any real plants just community tanks and a betta fish. My 29 gallon is more tall than it is long. 3-5 watts would be good for planted aquariums and the right lighting. Sorry about the confusion. 25 watts for a 5.5 gallon would be perfect though.
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