I had paraguayans till recently, a breeding pair. I didnt breed them myself but the previous owner did in a 4 x 2 x 18" viv.
Theyre a rare snake in captivity not many people I know no about them but they breed well.
I would like it longer and deeper really as adults are really not that arboral.
They need the length to be able to breed aswell really, the female I had was around 5 foot long at least and the male 4 so need the length really.