I am a hobbist writting from Zambia (Southern Africa), I have Guppies, Swardtails and Goldfish. As I write one of my Guppies has given birth to 16 fry. Now I was wondering whether there is somebody with an idea of what sort of food I can feed them on for a start. And a way of avoiding lose of any of them. I also want to get to know more about Guppies, Swardtails, Angelfsh and Goldfish - the breeding as well as feeding part. How does one tell the sex of Angelfsh and Goldfish?