Your green tads are definitely some kind of ranid. Look like young bullfrogs to me, but I am not familiar with the tadpoles of Cali's native ranids. The small dark tads are likely toads, though treefrogs are also possible. More pics would help!
Tadpole size is not always a good indicator of adult size- for one, they all start small, and some frogs with large adults do most of their growing post-metamorphosis, especially species that breed in puddles and other temporary water bodies. Large tadpoles do usually indicate large adults (paradox frogs are the exception, but you don't have to worry about them).
*EDIT* whoops, didn't see where you said the small tads were in the video. The globular body and close-set eyes make me think spadefoot (one of the Spea species in your area).
Tadpole size is not always a good indicator of adult size- for one, they all start small, and some frogs with large adults do most of their growing post-metamorphosis, especially species that breed in puddles and other temporary water bodies. Large tadpoles do usually indicate large adults (paradox frogs are the exception, but you don't have to worry about them).
*EDIT* whoops, didn't see where you said the small tads were in the video. The globular body and close-set eyes make me think spadefoot (one of the Spea species in your area).
