Yea, a really pretty one

Guppies don't lay eggs.

My bunnies names are Nibbles and Cappichino.   Those are cute

Depends on the water tempo, the amount of critters in the space, the size of the space, the kind and amount of food, and the kind and size of the tadpole. Genarally, the bigger the tadpole, the longer it takes to become a frog.