hi there
i have 4 goldfish 2 are gilrs 2 are boys and they are living in an aqiuriam
my tank has a filter gravel and a heater but i do not turn the heater on cause it will fry my goldfish and i want to no how they can have babies in my tank cause i have had them 4 all most 1 week and they were mating for about 2 days and they dont look pregnant and i want to no how comes they wont have there eggs how do they have eggs in a tank cause its so hard to get goldfish eggs from them cause i dont no if they will have eggs is my tank the right tank for goldfish breeding

so please hurry i want to no how they can have eggs???????????????????????????????????