can koi and gold fish live together

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I have small gold fish in my pond i want to buy koi fish, someone told me koi and gold fish can't live together eventually the koi will kill the gold fish. is this true:banana:
 

koiguy1969

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absolutley they can...i have at least a dozen of each and have had them all over a year together with no problems even the fry from this year all school together.
 
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I have had koi n goldfish for 2 years now no problems n one koi is now 9" long much bigger than the gold fish still no problems :)
 

sissy

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11 years mine have been together and not many issues that I have seen .A little aggressiveness during spawning ,but that is it .
 
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Comets/commons may be fine, but don't put koi with the fancy goldfish types! I have personally witnessed small koi brutally attacking Black Moor and Fantail goldfish. They're slow and won't be able to get away from the fast koi.
 

sissy

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I have fantails and never had a problem and have fancy tail fish and my 2 biggest koi are over 2 feet long and it has been 11 years now
 
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Same here - no problems between the big koi and the slow, fancy goldfish. We all live together in harmony!
 
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I'm guessing it depends on the size of the pond and how much cover their is. The attacks I witnessed were in a small space (not enough for a permanent home, this was a temporary set up) and didn't have any plants or other hiding spots. I realize now that the fish were likely stressed and that contributed to the aggression.
 

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