ChilliPepper
Fish Gatherer
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I'm going to be getting a 5x2x2 131 USG. I'm wondering how many heaters I'll need... 2 x 300w be enough?
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that`ll be fine
i had 1 in my 5ft, tho quite hardy fish that i doubt would have been effect to any great length should 1 have stopped working..always better to be safe than sorry
shelagh xxx
To heat that volume of water in a reasonable temperature room will require somewhere around 650 watts of heat using standard estimates of about 5 watts per gallon. Since the shape you are dealing with has a small surface to volume ratio, I suspect that as little as 500 watts will get the job done. The largest heaters that I have seen are 300 watts, so it would take a pair of 250W or larger heaters to take care of that tank. If the tank were a cube shape with the same displacement, I would try even smaller heaters to do the job although larger heaters just mean more time switched off. A pair of 00W heaters would just not be on as much of the time.