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Old 12-17-2012, 09:58 PM   #1 
angelfish11788
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the 25w fluval small heaters

for some reason petco has these on sale for like 20 bucks, I really like fluval cannister filters for the bigger tanks, so was wondering if there heaters would have the quality. just wondering thanks
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Old 12-18-2012, 10:01 AM   #2 
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i just returned a 25 watt fluval to petco and got an aqueon 50 watt instead..

i got the fluval one 2 and half weeks ago,it is preset to i think 76 degrees. my tank was constantly around 63 - 70.. the room temperature really affects how the heater turns on and off, my tank is now staying around 76 since i got the 50 watt the last 2 days so i think i made a good choice by returning the fluval,after i bought the fluval ilooked it up on amazon and it has so many bad reviews..i love fluval stuff i just think the 25 watt preset is a bad heater
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Old 12-18-2012, 10:06 AM   #3 
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Quote:
Originally Posted by Juicebox View Post
i just returned a 25 watt fluval to petco and got an aqueon 50 watt instead..

i got the fluval one 2 and half weeks ago,it is preset to i think 76 degrees. my tank was constantly around 63 - 70.. the room temperature really affects how the heater turns on and off, my tank is now staying around 76 since i got the 50 watt the last 2 days so i think i made a good choice by returning the fluval,after i bought the fluval ilooked it up on amazon and it has so many bad reviews..i love fluval stuff i just think the 25 watt preset is a bad heater
You must keep your house cold

A tank will never be colder than the room it is kept in.

However, I will agree though that you should avoid pre-set heaters and always go for an adjustable if you can. A 25W is fine up to 5 gallons, but not if your room is greatly different than the tank.
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Old 12-18-2012, 10:35 AM   #4 
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we have the house at around 65 - 75 depending on if we are home and if we are in bed and such.so i did not think the heater would have any issues keeping a 5 gallon tank at the preset temp
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Old 12-18-2012, 11:03 AM   #5 
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At the low end it would, small tanks do not retain heat well, unlike large tanks. With such a large room temp to tank temp difference, the 50W is the correct choice for you.
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Old 12-18-2012, 12:04 PM   #6 
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alright, i need to replace a free topfin heater i got, it is a 50w on a 5.5 and it keeps the tank at 83, my boy seems to love it, but the high temp bothers me. i have setting on lowest temp and to get it to go down i have to turn it off an hour then turn it back on. I like jagers for my bigger tanks but they are so huge that id assume the 25w are the the same.
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Old 12-18-2012, 12:56 PM   #7 
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83 is in their range, but on the high side. 78 to 79 would be ideal.

It's probably not so much the wattage that is your problem, but the heater itself. They work on a thermostat, not a time duration, so 25, 50, 100, etc they just shut off when they reach the set temperature. Yours may not have a well calibrated thermostat.

Or your room temperature is ~80.

I have a Hydor Theo, it's pretty small in size.
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Old 12-18-2012, 02:24 PM   #8 
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25W hydor theo heater. You cannot go wrong. It has kept my boys tank at 81 steady all winter long. Had it working now for a year.
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Old 12-18-2012, 04:45 PM   #9 
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yea not a fan of the topfin, i will try the hydor,
thanks
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Old 12-19-2012, 08:00 PM   #10 
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I just ordered a hydro theo 25 watt from petco. Online only they are on sale for $20.79 Free shipping on orders over $49 as well.
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