Pond safe mates for a Koi

[Adin]

I was wondering if you guys knew of any pond safe mates for Koi? I would also love suggestions on aquatic and semi-aquatic plants would would be useful in making more species viable in our pond. Thanks in advance for all suggestions and tips.

Here's our pond

 

[Chinadog]

I don't think any amphibians would willingly share a pond with koi, the koi would eat their eggs, larvae and possibly adult newts. Healthy adult koi can usually destroy and devour any vegetation in their water if the mood takes them, in fact mine can destroy and eat a whole romaine lettuce in in well under an hour, so anything other than the toughest plants are a no no.
If you want newts and koi it might be better to set aside a space for a nature pond and let amphibians colonize it naturally.
By the way, it could be the pics making it look smaller than it is, but the pond in the pictures doesn't look big enough for koi?

 

[dean james]

I agree with CD. I don't think anything can live with Koi as they constantly disturb the water top to bottom also I doubt your pond is big enough for Koi, using the cats head for scale.
as iIm sure you know they can reach 2 to 3 feet in length and need a lot of room just too turn around.
Also the filtration needed to keep the pond clean will hoover up any small amphibs and larvae you are lucky enough to attract. any form of pond pump seams to have a fascination for newts, and unless it is 100% newt proof they end up in the propeller of the pump.