No, I'm not sure. They could have always been there.

--
David L. Burkhead "Dum Vivimus Vivamus"
"While we live, let us live."
My webcomic Cold Servings
http://www.coldservings.com -- Back from hiatus!
Updates Wednesdays


"Mel" wrote in message
.uk...
Are you sure they haven't always been there? If you look closely at white
fish you can often see thin red veins in their caudal fin. I have a white
oranda and she has visible red veins in hers and is completely healthy and
happy. I think it's just because the fin is more transparent than fins of
another colour and you can see the veins more clearly. As long as your
water
parameters are ok and stay that way then I wouldn't worry too much unless
it
becomes worse, or if you know for sure that they weren't visible before
you
went away.
Mel.





"David L. Burkhead" wrote in message
...
When I got home from my recent business trip (1 week in Japan) and had
the
energy to look at the fish in detail I noticed that Hoshi has a couple
of
visible blood vessels in his caudal fin.

Hoshi is a sarasa comet, about 5" long, all white except for an orange
spot
on his forehead. His activity and appetite seem to be good. I tested
the
water: pH 8, Ammonia 0 ppm, Nitrite 0 ppm, Nitrate 20 ppm.

Normal or cause for concern?

--
David L. Burkhead "Dum Vivimus Vivamus"
"While we live, let us live."
My webcomic Cold Servings
http://www.coldservings.com -- Back from hiatus!
Updates Wednesdays