1 inch of fish requires 1 gallon of water. Work it out.
No. A one gallon tank is not appropriate for a singular goldfish much less multiple. A ten gallon tank is the bare minimum for a singular goldfish and breeding would require a tank of twenty gallons or more. A one gallon tank cannot handle the chasing that proceeds goldfish mating nor maintain a water quality that is suitable for raising goldfish fry.
Goldfish do not get pregnant.
20 gallons for one fish and 10 gallon for each addition goldfish. See the related link for further information.
They prefer one.
No. Unless you put it in a tank with sand.
Global warming
One goldfish needs a 30-gallon tank, and an additional ten-gallons per additional goldfish. Goldfish can grow to be 10-12-inches long.
No you schould not have that many fish in a one gallon tank. Thats the size of a big betta bowl. And because they are goldfish it is worse their poops are toxins
Once a week :))))) i have experience
Intrusion..!
Yes, you can have one goldfish in a 20 gallon tank, but no other tank mates, not even a snail.You still need to make sure you have a filter, and that you do regular weekly water changes as goldfish produce a high amount of waste.
You cant. Goldfish need much bigger tanks. 20-30 gallons. I bought 2 goldfish when I was new to aquarium hobby and put them in a 5 Gallon tank. The first one died in just one and a half day. The other one died just hours after the first one :( So if I were you, I would get a bigger tank.