Goldfish spawning is over, but now my danios (mostly leopards with a couple zebra) are having at it. I have fry of varying ages that I am near certain are danios (the only other option would be golden white cloud mountain minnows), but they are extremely jet black, with a tiny iridiscent spot on the tops of their heads. And the oldest of the bunch are still keeping this color even at 1/2-3/4" in length (and they are very torpedo shaped, not goldfish shaped). All the images I can find online of danio or WCMM fry suggest that they should be tan or white at these ages. Does the sun exposure cause fry to be a different color than they would be indoors? I'm still assuming they will end up looking like their parents eventually, but who knows, maybe they bred a weird color morph.