Q1: also I'll have to say.. the mess! Especially my male likes to poop in three corners, crawl through it on his way to the water bowl, dump said water bowl, then squiggle around and make poop soup.

Q2: as babies mine were full of vinegar.. little nippers! Now, they're both fairly laid back. Neither has offered to bite in months, but they do wiggle around if you hold them sometimes. They like to 'talk' too.

Q3: 4' boaphiles for mine. Low 90s warm side, low 80s cool. Humidity 50-60%.

Q4: I saw one that was probably around 5' long. Mine are both around 4.5' right now.