How similar are Crested and Gargoyle geckos in terms of personality and care?

Are Crested geckos happier housed with other Crested geckos or by themselves?
^ What about Gargoyle geckos?

Pacman frogs: Should they be housed separately? How often/what should you feed them?
Can they be held at all? (I know that they're skin is very fragile)

How much space do each of these animals need?

Does eating mice really negatively affect a tarantulas molt??

THANKS FRIENDS