how do you breed goldfish?

Question
how do you know if goldfish are ready to breed...also i live in BC so do i still have to use the heater and make the temp. higher?

Answer
This is a good question, to be honest I've never tried to breed goldfish however I know of a site that will tell you all you need to know: http://www.goldfishinfo.com/spawn.htm as far as the water temperature goes just keep the temperature above 74F and you should be fine.