Hi,
If you are sure they are male and female, they should not be sharing a cage at this age. They are much too young to breed, and being with a male can cause the female to try to lay eggs when she is too young. This can actually risk her life. Did they come with paperwork that they were male and female? It usually takes 2-3 years for the male and female to exhibit the markings that show what sex they are. If the male already has his full ring, he is at least 3 years old. At 7 months, both of these birds should be a solid color with no ring markings yet. As for biting, all you can do is find a way to keep them away from you when you clean the cage – maybe use an extra perch to hold between them and your hand, or try wearing gloves. You can’t tame them as long as they share a cage and can fly away from you. But if you only got them for breeding, then it’s a matter of getting them to back away from you instead of biting you.
Thank you for asking Lafeber,
Brenda