Why Is My Goldfish Turning Black?

Answer

The reasons a goldfish turns black could be due to too much ammonia in the water or over feeding. It can also be due to overcrowding of the gold fish in a tank that is too small. By correcting these things, the fish can turn back to gold.
Q&A Related to "Why Is My Goldfish Turning Black"
The reasons a goldfish turns black could be too much ammonia in the water, over feeding, too many other fish with the goldfish or the tank is too small. Correct these things and the
http://www.ask.com/web-answers/Science/Nature/why_...
The blackening of your fish's tail is most likely an ammonia burn. Do a large water change and cut back feeding to 2-3 times a week until the ammonia levels go down.
http://wiki.answers.com/Q/Why_is_my_goldfishes_tai...
Goldfish have several different types of skin cell that determine the coloration of the fish. Those present in black coloration are called melanophores and they contain melanin, a
http://www.ehow.com/info_8785278_do-goldfishs-fins...
If it is just black spots, your fish is probably healing from ammonia burn. They
http://www.chacha.com/question/why-did-my-gold-fis...
1 Additional Answer
Chances are your goldfish is turning black due to a chemical burn. Check your water chemical levels. Usually turning black indicates too much ammonia in the water. You can find more information here: http://thegab.org/Illness-and-Treatment/what-is-wrong-with-my-fish.html#BlackSpot
Explore this Topic
Goldfish turn black due to scar tissue caused by high levels of toxins in the water such as ammonia or nitrite. You should get a purchase a kit and carry out a ...
The goldfish might be turning black because this is how fish heal if they have been in a confined space with other fish. Pet stores do not provide enough space ...
The black colour in your goldfish is as a result of its genetic makeup or as a result of parasite infestation. The fish might also have been exposed to high ammonia ...
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