I have noticed that my 8 week old female rabbit's pee is almost "milky" its very creamy/ milky with a hint of yellow. BUT my other rabbit (i have 2 rabbits, he is around a 1 and a 1/2 years old and is neutered) his pee is orange/ kind of rusty colored but it's not milky. 

With the 8 week old, the pee is opaque. But with my older male his pee is "clear" but it's dark orange-ish/ rusty colored? Is that normal? 

Rabbit urine varies depending on the individual and what they have been eating. Sounds like calcium in the cloudy one.

rabbit pea can be everything from a milky white to a dark red/orangey color. all are normal if it isnt sludgey, or has blood spots.

its all liquid, just very cloudy. so the cloudy pee is normal? or is too much calcium a bad thing?

rabbits pee out excess calcium, unlike humans. as long as it isn't crystalizing, or getting sludgey, its fine.

thanks!

Yep, what monkeybun said.