Advise on pond size and shape

[callMeFishmeal]

Hi
I have a small yard and wanted to build a koi pond and originally was aiming as close to 1000 gallons as possible. .With my yard the only was to do this is have an underwater cave like section under the patio. Also going more than 30" inches down is not good because of neighbor's houses and garage foundation. I am also exhausted from digging. The max I can now have is 7 feet by 2.5 feet pond and 3 feet deep (18" below, 18" above ground level). It will be concrete with 6 inch base and walls. It obviously too small for koi and i am now thinking of goldfish. I am considering narrowing it to 2 feet so i have more patio space. Or I can shorted in to 5.5 feet. Basically one question is if 7x2 or 6x2 too narrow for goldfish?

thanks for any guidance. I am planning on a laguna like pressure filter with UV to start with. Also assume 5 or 6 fish to start.

Thanks

 

[sissy]

welcome and I made mine half above and half below using a double wall inside wall on top of dirt I put concrete block filled with dirt and rebar pounded down to hold them and the retaining wall block.I went rectangular

 

[dieselplower]

Why do you want to eat up pond space with concrete?

 

[JohnHuff]

Hi Fishmeal,

Welcome to the forum! Can you post some pics of your yard so that we can see better what you are facing?

Also, you mention that you can't go more than 30" inches down because of your neighbor's house, how does he feel about a rooftop pond, and can he help you with digging?

Also going more than 30" inches down is not good because of neighbor's houses and garage foundation. I am also exhausted from digging.

 

[sissy]

If you leave out concrete and get a liner it could be bigger and you could save money .If you have a small pond liners are cheap .Even Northern tool sells them and if you don't mind 20 mil liner lowes has them .I just have the dirt dug out and just on the top part of my wall is 1 layer of concrete block .If I had enough dirt I would not have needed the concrete block .

 

[glanzaboy71]

Try to avoid square corners
Always have a roundish shape for better water flow.

 

[callMeFishmeal]

ah... well too late for that. Concrete is poured. I think i can buy some material to place in the corners before I apply the pond paint that will round out the shape.

 

[sissy]

Never had a problem with my rectangle one and it has been 11 years now .

 

[dieselplower]

ah... well too late for that. Concrete is poured. I think i can buy some material to place in the corners before I apply the pond paint that will round out the shape.

I wouldnt bother. Hope all is going well. Looking forward to pictures!