is this a problem??

In article ,
says...
Hello,

I have just started with goldfish because my daughter won one at a
local fair. We have it alone in a 10 gallon tank which is cleaned
daily and water exchanged every week. It is very clean and the fish
seems to be doing well. The last few days the goldfish has developed
a black coloration along the top edge of the top fin. Is this
anything to worry about?? If so, what does it mean and what should we
do?? Thanks for your help.


Black-ish discoloration that appears
suddenly is commonly a result of high ammonia levels. But it's sort of
like a scab, I think: the discoloration shows up after the damage has
occurred.

What does "cleaned daily" mean? If you're just starting, you need to
read some basics: http://faq.thekrib.com/begin-cycling.html for example.
Cleaning should be restricted to scraping algae off the glass and
vacuuming gunk off the floor of the tank/gravel with a siphon.
Get basic test kits (ammonia, nitrites, nitrates) and let them
dictate how frequently you change the water, generally no more
than 50% at a time.

Honest: read the above article, and
http://users.megapathdsl.net/~solo/p...htm#essentials
is good too.

Gunther

The last few days the goldfish has developed
a black coloration along the top edge of the top fin. Is this
anything to worry about??

Maybe not, gf do change colors some, however, it could be fin rot if it is
along the outer edges of the fin. Check this from the Puregold site.

http://users.megapathdsl.net/~solo/p...mptom2.htm#FIN
ROT

Deanna

I have just started with goldfish because my daughter won one at a
local fair. We have it alone in a 10 gallon tank which is cleaned
daily and water exchanged every week. It is very clean and the fish
seems to be doing well. The last few days the goldfish has developed
a black coloration along the top edge of the top fin. Is this
anything to worry about?? If so, what does it mean and what should we
do?? Thanks for your help.


Mark,
Both of mine had that happen when they changed colors. Mine were brown and
the black ran accross the top of them and then disapeared and then they were
gold.

Kay