tropical pond depth

[dirtbikerider]

im in the middle of building a koi in my back yard its like 15x5x4ft and i would love to heat it in the winter so i could get a red tai l but i dont know what the electric bill would be. my parents probaly wont like it

I live with my gf but I pay the bills so it would be me that needs to worry about the electric bill, which is why I am asking so many questions lol,

Once again this is all for a hypothetical pond, not one I am even in the planning stages for but it would be awesome lol

 

[baseballman1321]

omg thast idea would be awesome with a greenhouse. i got an idea make a shed type thing then put a woodmstove in it light the would stove during the winter month or get one of those like wood stove that can heat your house that you keep out side. then make a a pond in the middle of the shed and bam you got a pond.

 

[Bassguy82]

yea bass can take some cold waters I have them in my pond and its 5'deep but the coldest weather outside in my area is about 35 degrees

 

[Conner]

The deeper you dig the pond, the more stable the temperatures will stay in the winter (and summer), but that does not necessarily mean they will stay warm enough for a tropical fish, even at the very bottom.

The only way to have an outdoor pond that stays warm enough for tropical fish will be to heat it. You could ease some of the burden by using either a greenhouse around/over it, or building it inside a shed or outbuilding. But it will still need to be heated.

The only way to add heat with depth, would be to heat it geothermally. And as you said, it isn't feasible to dig that deep.