Gallons to fish ration...

[chebert22]

Generally, whats the acceptable number of fish to gallons of water?

[biggin]

Depends on the fish, how much maintenance you want to do and your filtration / water movement.

[somefishguy]

6-8"of fish per 10 gallons, with at least 10% water change per week.

[chebert22]

oh well hell, then two 3" gold fish will fit nicely in a 20 gallon tank then?!?

[biggin]

Yes

[chebert22]

no here is another stupid question. when you measure a fish, do you measure the body only or do you measure the tails also?

[biggin]

Body and tail, you always want to error on the side of caution.

[biggin]

And not stupid questions, we are all here to learn....

[chebert22]

well then in that case, my goldfish at 5 to 6 incher's.....

[biggin]

I think you will be fine. Make sure to change the water and keep it clean for the dirty gold fish. Have a good filter and you should be fine with 2.