about every 2 weeks
Rabbits need exercise every day for half an hour.
Yes, but any glass enclosure will need to be cleaned more often because the ammonia level will be much higher due to less ventilation. It will also hold more heat (body heat from the mice) so make sure it is large enough to accommodate the number of mice in the enclosure.
Draperies should generally be cleaned one or two times a year.
every day
No. Rabbits need daily care. For example: Rabbits need active play and exercise time every day for at least 4 hours. Rabbits also need their cages cleaned out every day. Rabbits need fresh food every day, fresh hay, and water. See the related questions below for more information and links.
It has to be cleaned every so often, mainly if you can see that it is dirty than you should clean it. And it really should be cleaned every 4-5 weeks.
A glass enclosure
== == every day howrse.com answer: Daily
Wild rabbits live in burrows underground. Pet rabbits live in some sort of enclosure, like a hutch, large cage, or exercise pen. They need out every day to exercise, play, and socialise. See the related questions below for more details and helpful links.
First answer: you don't have to clean their teeth for them, because they sort of do it themselves, with celery or cabbage. Give them these, and you rabbit will be a happy little bunny! More information: Actually, celery and cabbage are not very healthy for rabbits. They may be okay as treats, but not a regular part of the diet. See the related question below for information about a healthy rabbit diet. Rabbits don't need their teeth cleaned, but they do need their teeth ground down because they're constantly growing. Most rabbits can grind their own teeth down by eating lots and lots of hay. Some rabbits, for genetic reasons, need to go to the vets for dental care. If a rabbit's teeth grow too long, it will stop them from eating, which quickly leads to GI stasis and a painful death.
I would say no, but I don't know how you think. Are you keeping them for pets? Fur? Meat? If pets, don't. They are wild animals, and there are domesticated rabbits for your pet needs. If fur or meat, depending on the size of the pen. A regular pen for two pet rabbits are too small for breeding rabbits. If on a large large field, could work, but why? Is it even legal? The space they will need in time in an enclosure is difficult to fix. And it is certainly not profitable, or healthy for the rabbits.
They usually do not need to be cleaned unless you are using a cylinder for nitrox.