Anyone want to take a guess at this fish?

[Waterbug]

Of the younger comet babies, none of them have the hump behind their head, but our giant white feeder does (but has short fins).

Hump is of course one sign of a hybrid.

 

[callingcolleen1]

I got a half breed too, its black, never changed color, has no barbs, and looks like a koi sort of...

 

[j.w]

I think it's a Goi :razz:

 

[callingcolleen1]

Goi! ha ha Ha, funny!
Hey look!! That jumping fish of yours must have jump out of the net! Ha ha he he.

 

[Shoestring Ponder]

Could be a Goil also.

:goldfish:

 

[capewind]

I came across a picture chart a few years ago online, that I cant find now. It was showing the development of a standard goldfish at different ages. I want to say the pics showed one fish through the stages, at maybe 6 yrs of age, it was developing a hump... at I think it was 9, it was very clearly a large hump... I think the purpose of the images was to decide age... cant remember, which is why I went looking for it LOL.

I had also read that hybrids could have a hump much sooner, and this little guy does...