Hey what’s wrong with hairless chihuahuas! This is my “sister”, she is an 11 year old Chinese crested/chihuahua mix.
She likes to keep her butt warm lol
OP I would probably agree with your other half, I tend to like the “ugly” fish too lol. I find they have more personality.
My wife thinks ALL dogs are cute, even the half blind warty ones.
We have a chiweenie ourselves, same color as your dog, but long and low to the ground. I think somewhere along the line they must have bred chihuahuas with hampsters, their skin so so thin!
I vote for some sort of frog fish, but that would probably limit other inhabitants.