Koi in a tank

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Loulou

Loulou

Feeder Fish
MFK Member
Mar 12, 2007
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Mauritius Island, Indian Ocean
Anybody kept or is keeping koi (or any other carp) in a tank?

I'd love to see pics and hear advice or any comments.

Thank you.

:)
 
Will check the thread out. :)

Thank you.
 
We have a local dining establishment and they have been keeping KOI in a tank for about 10~15 years. Their oldest fish is 10 years old. We've talked to the owner about what they do to maintain the tank. They have about four 15" fish, two 8". In about 200 gallon tank. They change 70% of the water every week. And have very high flow filters. They don't take any chemical readings, just change the water frequently, and add DeChlor to the water. We get Chicago city water here so lots of chlorine in the water. It can be done, the fish are healthy and active. Would they be better in a pond, sure, but they have a pretty healthy color and are active. Definitely well cared for and healthy
 
Chris-Chicago;4223998; said:
We have a local dining establishment and they have been keeping KOI in a tank for about 10~15 years. Their oldest fish is 10 years old. We've talked to the owner about what they do to maintain the tank. They have about four 15" fish, two 8". In about 200 gallon tank. They change 70% of the water every week. And have very high flow filters. They don't take any chemical readings, just change the water frequently, and add DeChlor to the water. We get Chicago city water here so lots of chlorine in the water. It can be done, the fish are healthy and active. Would they be better in a pond, sure, but they have a pretty healthy color and are active. Definitely well cared for and healthy
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Koi can live up to 200 years... keeping them in a tank will greatly lower their life span.
 
I honestly doubt even 5% of the of world has the ability to keep a Koi for 200 years. So in actuality they will probably make it to a hundred in most instances. Basically if their primary care giver dies their life expectancy gets small quick.
 
aquaculture;4224167; said:
I honestly doubt even 5% of the of world has the ability to keep a Koi for 200 years. So in actuality they will probably make it to a hundred in most instances. Basically if their primary care giver dies their life expectancy gets small quick.
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That's not the point. They are POND fish... You don't keep a Great white in a Bath Tub, why would you keep a Koi in a tank?!
 
Chris-Chicago;4223998;4223998 said:
We have a local dining establishment and they have been keeping KOI in a tank for about 10~15 years. Their oldest fish is 10 years old. We've talked to the owner about what they do to maintain the tank. They have about four 15" fish, two 8". In about 200 gallon tank. They change 70% of the water every week. And have very high flow filters. They don't take any chemical readings, just change the water frequently, and add DeChlor to the water. We get Chicago city water here so lots of chlorine in the water. It can be done, the fish are healthy and active. Would they be better in a pond, sure, but they have a pretty healthy color and are active. Definitely well cared for and healthy
Click to expand...
What restaurant?
 
And I would agree Koi belong in a large body of water. But it seems to me there are a lot of people keeping Gar, Paddle fish, .... which would be better off some place other than a tank. All large fish are messy. I agree Koi make more mess than most (perhaps all) but then why do people keep African cichlid, and Dempsey's ?

I just want to keep them as healthy as possible. So perhaps that is only 1 Koi in a 200 gal tank, or 2 Koi in a 200 Gallon tank until they are 10" long and then it's time to build a pond.

Thanks for your input. What do you think the best filter would be (even though you wouldn't do it) to keep Koi healthy in a tank. 3 layers of mechanical, 1 biological, and have plants in the sump for example? HAve a tank turn over rate of 9x's to 10x's?
 
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