Well, Comet goldfish are also known as feeder fish. They can live a very short lifespan or a one that lasts about 2 years. They are hardy fish and are meant to be put in ponds like koi are. These fish are related to koi. The fish can grow to about a foot long if they are properly taken care of. You can buy them at your local pet store for about 20 cents. The best way to keep these fish alive and well is to buy them from a trusted fish dealer. These fish can be fed to larger goldfish. They can also start the nitrogen cycle that takes about one month.
Assuming you are talking about comet goldfish, the fish should live for a few decades under proper care.
The "Comet" is a variety of Goldfish that has a long, single tail.
Probably, but usually the comet goldfish will get all the food and/or the other goldfish will become miserable. This has happened to me before and I do not recommend putting them in the same tanks. Try putting the fancy and comet godlfish seperate!
One goldfish needs a 30-gallon tank, and an additional ten-gallons per additional goldfish. Goldfish can grow to be 10-12-inches long.
In optimal conditions, goldfish may live more than 20 years, but most household goldfish generally live only six to eight years, due to being kept in bowls.
Because a comet is a single tailed goldfish, and can grow very long, it will need at least 30 gallons on it's own
I have 2 myself. I've had them for about 1 year. I expect them to live maybe around 8-11 years. Or less if you don't take care of them enough.
a goldfish,sparkling
Comet goldfish grow to be around a foot long. 120 liters is about 30 gallons so I say about 2. Get fancy goldfish because you could do even five in a tank that size because they don't get as big.
no. i have had two big comet goldfish with my, little 2 inch fish, and they never ate him.
For househeld goldfish, they generally live 6-8 years
I have never heard of a "Pond Rocket Goldfish" and I can find no listing for such an animal in any fish reference book. That fact suggests to me that someone has made up name for a fish they didn't know how to identify. If the fish is a basic goldfish shape and has a tail that is very long (about half to one body length) it is probably a "Comet"