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Sat Mar 27, 2004, 11:40 AM
#1
tank heater
I am trying to set up my 90 gallon tank for discus I cant get my water to 85 I have a 3 watt heater which my lfs says is fine but it is not and that is the biggest they have any suggestions would be great thanks tacks
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Sat Mar 27, 2004, 12:09 PM
#2
Larvae
So that is around 333 litres. You will have to go for 2x 200watt heaters, one at either end.
Anthony 8)
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Sat Mar 27, 2004, 10:28 PM
#3
tacks, the "rule" is 5 watts of heater for every 1g. So in your 90g, you need about 450 watts.
In tanks that are over 3' long, I feel it's better to have 2 slightly undersized heaters at each end. That way, if one "sticks on", your fish don't boil, and if one fails "off" the temp drop is far more gradual.
I agree with AA....2 @ 200 watters is the way to go.
For Comparison: in my 55g (4' x 13") I have a 200 watt, and a 250 watt. Anything less and the tank doesn't stay stable at 86*F.
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Sun Apr 11, 2004, 08:26 AM
#4
Okay, this may be a dumb question, but I'm young and not used to the foot and inches measurements....
How do you work out the volume? How many feet square in a foot square? How many feet square in a gallon? What kind of gallons do people useually speak of - I know there are two.
I'm getting two tanks that are 2 feet by 16 inches by 20 inches - how many 200W heaters will I need?
Thanks
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Sun Apr 11, 2004, 09:17 AM
#5
http://www.aquaticquotient.com/aq_calculator/index.php
a US gallon is 3.87 litres.
Anyway use that calculator too work out the volume.
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Mon Apr 12, 2004, 09:33 AM
#6
Moderator
i have a 200 ltr tank with a 300 watt heater at each end...works for me.
my Flickr photo page: http://www.flickr.com/photos/27593184@N05/
my YouTube page: http://www.youtube.com/user/Mattzilla5000#p/u
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Mon Apr 12, 2004, 10:42 AM
#7
300watt at each end? sounds like OVERKILL!! I think with heaters its better to have more then less!!
My 225ltrs i was thinking of having 2x200watt.
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Mon Apr 12, 2004, 11:42 AM
#8
Moderator
yeah it probably is a bit of an over kill...but i was able to get 100, 200, or 300 watt for the same price, so i got the 300 incase i decide to use them on another tank, or if one breaks then the other one will do until i replace the broken one.
my tank temp only ever goes up or down by about +/- 0.2 degrees, so at least they keep a constant temp.
matt
my Flickr photo page: http://www.flickr.com/photos/27593184@N05/
my YouTube page: http://www.youtube.com/user/Mattzilla5000#p/u
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`·.¸¸.·´><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º>><( (((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º>
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Mon Apr 12, 2004, 12:49 PM
#9
well thats it, its better to have more than less
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