about 10 or 15 depends on how big they are
If they are fancy goldfish (the plump looking ones) then 6 or so would do well in an 80 gallon when fully grown if they are common goldfish, then 2 maybe 3 when full grown would be ok as they reach a whole foot long! This may seem like its not many fish for a large tank however goldfish are real poo machines and good filtration is a must.
Goldfish need plenty of room to swim around and get very large. In a 1000 gallon pond you could put 25-50 goldfish just keep in mind that goldfish grow very large and need about 20-30 gallons each when full grown.
20 gallons for one fish and 10 gallon for each addition goldfish. See the related link for further information.
One couragious tiger is enough to kill a fully grown man.
You cannot put any goldfish in a 2 gallon tank.One fancy goldfish needs at minimum a 20 gallon tank on it's own. This is not just because of their adult size potential, but also because they are very messy fish and produce a high amount of waste.
i think 36
46
13, a fully grown Gw. shark weighs 34 pnds.
One medium sized dog can take down a fully-grown man.
It takes 2 or 3 months for a houshold pet goldfish to mature, you can tell if it's a female by that time because they will have some white speckles on their lower fins. Plus, though the common goldfish lives for about 2 days in a bowl, but if you get a 10 gallon tank for it and feed it every morning and night until it's mature, then once a day when it's mature, it can live for a long time; I had a goldfish that I cared for ( the pet goldfish not pond goldfish), and it lived for 9 years! ( It just died :( ) But look for red and/or white spots, split fins, or enlarged eyes as these can be deadly but simply buying medicine from the pet store will save your pets life.
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
The rule of thumb is 1 gallon per 1 inch of fish. But of course if you have bigger goldfish you will need more room. So for larger fish, go 1 gallon per 3 inches of fish.