I got a new all white shimmery butterfly koi on Thursday, from the better ponding store near here. The young kid said it was a Gin Rin? It is about 3-4 inches, and has very shiny scales - pearlescent, and looks very much like this one (sold on ebay, borrowed picture).

It is MUCH smaller than the other fish in the pond - I have thirteen 8 inch sarasa comets that are 2 years old, a 10 inch yellow koi also 2 years old, and another blue/silver koi that is 1 year old and about 6 inches. The new fish seems to be terrified of the others and hides under a specific rock all the time, unless I gently move the pot that sits on top of that rock.

Will it eventually warm up to the others, or will this one stay in hiding pretty much all the time? I feel so badly for it!

Here is a link that might be useful: