They will live to be happy and healthy fish just as long as you take care of them.
Yes. A goldfish can live without a filter. They may not live as long, but they do not have to have a filter, or a heater. I had goldfish in a five gallon tank without a filter for a long time. Hope that this helps.
Yes
depends, can a ten gallon tank live in a goldfish
One goldfish needs a 30-gallon tank, and an additional ten-gallons per additional goldfish. Goldfish can grow to be 10-12-inches long.
yes, as long as you have as your tank is large enough for them both.
10+ years but they will need a very large tank.
A goldfish can live in an opaque glass tank as long as you keep up with necessary water changes. Like a small outside garden pond goldfish are only viewed from the top.
Yes, but your tank size needs to support it. If you mean that a regular goldfish is a long single-tail goldfish, then you need at least a 40 gallon tank just for the 2 fish due to the size potential of the common goldfish. If you mean a regular goldfish as in a round bodied fantail, or perhaps a ryukin, then you need at least a 30 gallon tank for the 2 fish.
Yes, two goldfish can live together in the same tank as long as the tank is large enough to accommodate both fish and there is enough space for each fish to swim comfortably. It is important to provide proper filtration and regular water changes to maintain good water quality for the goldfish.
err not a good idear yabbies will eat a goldfish
No, it is not recommended for a goldfish to live in a 1-gallon tank as they require more space to thrive and stay healthy. Goldfish produce a lot of waste and need a larger tank with proper filtration to maintain good water quality. A larger tank, ideally 20 gallons or more, is recommended for a goldfish to live comfortably.
they live either in a tank or in the ocean