How big of a heater should I get? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 12 Old 01-28-2007, 09:18 AM
but if you use two weak heaters, when it gets stuck it will take much longer for it to overheat your tank giving you enough time to find out whats wrong. I would go with getting two 150 watt heaters
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post #12 of 12 Old 01-28-2007, 03:27 PM
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The only time I have seen two heaters used is when you have a lot of plants in the tank or it is divided some way. If you have a lot of plants then I would use 2 heaters, if not then one with descent circulation is plenty.

The quality of the heater always has a little to do with it and I would recommend getting one with an automatic high temp shut off to help prevent deadly overheating.

Reading the other posts, I don't know if this even matters anymore but it recommended to have 5 watts of heater per gallon. Remeber that doesn't mean a 100 gallon has to have a 500 watt heater because after you calculate for substrate and other reductions, rerely does a finished tank make it to 90% of the original size in actual water volume.

Just make sure you have good circulation and one good heater should be plenty.
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