Bought this guy a year ago. He was the size of a quarter. He still sleeps in the same crevice he used when he was a baby; however, half his body sticks out.
Yep, I had a hippo too once and got him while he was really small. Like maybe 1". He slept in a crevis really nice then. But as he got bigger, still sleeping in the same small crevis, his backside, including wagging fin, aways stuck out.