Large koi compatible with Aros? I know it may be a dumb question....

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Chicxulub

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I know it may be a dumb question for to you guys, but a friend of mine who is a BIG koi fan recently "discovered" aros, and she is interested in getting an Australian aro to share her pond. Actually she wants an xback, but we all know that's not possible Stateside. She keeps the pond no less than 76*, 10'x 4'x 2'.

Would the aros be too aggressive to share the pond with the koi? Failing the Aussie, as I know they're aggressive, would a SA species be ok? She has five between 10 and 15 inches. Obviously the aro would need to be grown out a bit first.

Thanks.
 
koi are cold water fish.. and aros are like tropical.. asian, south american or aussie.. i wouldn't mix them up.. the jar will / might get psycho post a certain size and more than pick on the koi.. prob at her own risk.. the south american could be ok but again don't feel its right to mix species from entirely different parts of the world with different requirements.. hope it helps. cheers
 
So this pond must be indoors and heated?
 
Koi (read carp) are highly adaptable and are found in tropical waters everywhere. Other than being an odd combo, I do not see problems with koi+aros. My jardinis have always lived in community tanks and ponds without any problems but that does not mean the reports of jardini-caused problems are false at all. I think it is a gamble that, with careful observation, may be tried. Silvers, I think, are less likely to cause problems. If I went silvers, I'd go one or at least 5. 2,3, even 4 has been bad numbers for me.
 
Koi actually THRIVE in water temperatures up to 80-82 degrees. Also, being that koi seem to be middle-region fish (mine rarely breach the surface) the aro will probably take no notice of them. My only problem would be; are the koi food-aggressive? Some of my koi are very shy at eating and others will rip it out of the mouths of other fish. If they did this to an arowana, it could become a problem, as koi will eat basically anything, including the aro's dinner.
 
I agree. My koi are piglets with fins. Making sure the aro eats well may or may not require more work but it is far from impossible.
 
I have seen aros kept in tank in the 74-78f. I would try it personally... Feeding shouldn't be too much of a issue. Id try a silver aro first.

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If it's outdoor pond, screw the idea. It's true that koi are highly adaptable to tropical temperatures.....but aros are not adaptable to the cold water temperatures, especially Missouri winters.
 
Few issues, 1. aro need tropical temp, 2. Koi thrive on higher ph, 3. Aro will jump.... If u can balanced these I don't see why not....
 
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