What Species are these fish?

[goku]

I got these as a feeder fish a few months ago. 3 of them made it after 2 weeks so I shifted them to my other tank. They have grown so much! Was just wondering what Species are they?

 

[D-Fish]

The white one is definitely a koi from what I can see. The tan one looks like it could be a koi hybrid with a goldfish or it could be another type of carp.

 

[goku]

The white one is definitely a koi from what I can see. The tan one looks like it could be a koi hybrid with a goldfish or it could be another type of carp.

Yup the white one is a koi