goldfish do not live on land
The number of goldfish that can live together in a single tank depends on the size of the tank and the type of goldfish. In general, it is recommended to have 20 gallons of water per goldfish to ensure they have enough space to swim and thrive. It is best to research the specific needs of the type of goldfish you have and consult with a pet store or veterinarian for guidance on the appropriate number for your tank.
I am not aware of goldfish stopping growing at any specific age. They can get very large (over 24 inches) in the twenty or so years I have known them to live.
Your goldfish will not live "longer" no matter how many or how few you have.
For househeld goldfish, they generally live 6-8 years
yes
No, goldfish are freshwater fish.
depends, can a ten gallon tank live in a goldfish
No, goldfish are best with goldfish. In addition, tilapia have different needs and are quite likely to be aggressive towards the goldfish.
A goldfish is a freshwater fish, and as such does not live in the sea.
no the goldfish would it the tadpole
Goldfish are egg layers