Breeding pair Cockatiels

Unfortunately I have to let go my breeding pair of cockatiels. Last bred in June. Cockatiels breed couple of times a year. Mother is full white and father is grey. Usually the babies always come out looking like their twins. I currently have their 2 babies aswell raised by parents but had to be separated due parents pulling feathers. They are currently around 4.5 weeks and starting to eat independently. Please message if interested in taking all 4 or just the parents.