Early2003 we dug a bath into the ground outside and filled it with water. When we set up the African tank, we cycled it using 4 goldfish around 8cm each. When the tank had cycled, we added the thermostat and threw the goldfish out into the pond (it was April and the outside water temperature was the same as that of the tank inside) where they have been ever since. They have lots of oxygen weed, green water and insects dropping in. We have never fed them. At the height of last summer we found 1 dead and suspected lack of oxygen but the others were OK.
Yesterday I looked outside to see quite a few good sized fry basking at the surface! Guess I'd better look into getting the main pond built - we have been talking about it for about 20 years now :lol:
and this is part of mum by the looks of it...