Is it me or the heater? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 23 Old 02-01-2009, 12:46 PM Thread Starter
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Ok, that's relieving. That'll really decrease the workload for my new heater.
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post #12 of 23 Old 02-01-2009, 04:39 PM
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yep, just let the hot water run for a minute then adjust it so its about the same temp of the tank water and you shouldnt have any problems at all. it will not only decrease the workload of your heater but it wont put any stress on your fish with the drastic temp change.

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post #13 of 23 Old 02-01-2009, 05:05 PM
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Whoa, do not get a heater thats too big. Once I bought a 200w heater for a 20 gal because it was only a dollar or 2 more than the 100w. A month later it stuck on and cooked my fish overnight. Fish stew. If it had been properly sized I would have had a lot longer to notice there was a problem. If you can afford it, using 2 smaller heaters is often recommended, if one malfunctions you will have longer to notice the problem.

3-5w per gallon is generally recommended. I saw a table somewhere, probably from one of the heater manufacturers, that said 200w should raise my 50g to 18degrees above room temp. I have had it up to 85degrees, so this is probably correct

Last edited by syrinx; 02-01-2009 at 05:19 PM. Reason: addition
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post #14 of 23 Old 02-01-2009, 09:39 PM Thread Starter
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So you would recommend something more like 2 50w heaters? Or 2 75w heaters?
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post #15 of 23 Old 02-02-2009, 07:27 AM
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On that size tank I'd recommend a single 100W heater. If you've got the money to use a pair of 50W's then go ahead.

100Ws should be plenty to keep your tank warm, if a 100W heater was having trouble with it either our room with the tank is extremely cold or something is wrong with the heater.

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post #16 of 23 Old 02-02-2009, 04:30 PM Thread Starter
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Yeah, the reason could be that the tank is next to a window, which makes the temperature fluctuate. Heating the water before topping the tank off will definitely help, but if it doesn't solve the problem, what do you think I should do to keep the temp constant?
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post #17 of 23 Old 02-03-2009, 06:17 AM
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Does direct sunlight enter the tank or is there something blocking it?

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post #18 of 23 Old 02-03-2009, 03:33 PM Thread Starter
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Well, the fish tank's to the sided of the window, so direct sunlight doesn't hit it.
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post #19 of 23 Old 02-03-2009, 04:20 PM
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Quote:
Originally Posted by Tyyrlym View Post
On that size tank I'd recommend a single 100W heater. If you've got the money to use a pair of 50W's then go ahead.

100Ws should be plenty to keep your tank warm, if a 100W heater was having trouble with it either our room with the tank is extremely cold or something is wrong with the heater.

Agreed.
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post #20 of 23 Old 02-03-2009, 08:36 PM Thread Starter
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I'm thinking I'll just get a new 100w now, because this one is failing to get the temperature of the tank above 72บ. The room temperature is usually in the mid-60s and NEVER goes below 60บ (the tank resides in the finished half of my basement), so that isn't an unmanageably big difference between room temperature and desired temperature.
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