Thanks, tried putting them all in a play pen with the sand bath in the middle and thought everything was good until the mother had finished and decided to go for the son so we have split the parents and the children and everyone seems to be getting along.
We adopted two chinchillas from a pet shop and were told that they were brother and sister and had never mated. Low and behold and to our suprise we found two babies about 2 months later.
We immediately had the male neutered as we didnt want lots and lots of babies and my wife would never sell...