Heating a 300 gallon tank ?

[fwprawn]

Is one 300 W heater enough? Or two?

The tank has two 6x6 overflow boxes, top to bottom. These are NOT used in any way (no water flow) - Can the heater(s) be put in there, or do would that not heat the tank properly? Thanks!

 

[ecoli73]

Pending your room temp, I would use 2 three hundred watts at each end of the tank, and I would place them in high flow areas.


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[fwprawn]

The room stays pretty warm - low 70's.

 

[ecoli73]

My living room goes down to fifties at night in winter, and that setup has no problem keeping my tank at 78-80. The heater struggles to get pass 76 with only one.


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[ecoli73]

I would still recommend two. The cost adder is minuscule in relation to everything else.


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[fwprawn]

Sounds good - two then - thanks!
I guess it would not be efficient with them in the overflow boxes ?

 

[bassfisher91]

I would do two as well. I also tried to keep them in the overflow boxes and it didn't work out...its a nice idea though.

 

[DIDYSIS]

Your going to need two heaters for that size of a tank, One just wont do it well, and it will probably run so much you will burn it out faster as well. Also putting them in the overflows is not the best as you dont really get any water flow to move the water around in them, if you put the heaters in there and then added a pump or power head in the overflow then you would be fine, that water just needs to circulate through the tank well.

 

[fwprawn]

Thanks everyone - I will put two 300's in there, in the tank itself - thanks !

 

[canadian.fish]

I would opt for more than two i have a 300 and a 100 in my 150 and I can't get the water passed 78 for the life of me, with the ambient room temp being 70-75. I would opt for 3-4 just to be safe


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