How are they different from BPs?

[kxr]

Weren't all 3 short-tailed pythons considered the same species at first? Are the Sumatrans really that different? I don't like their dark coloring but if they have different morphs I'd be willing. I don't like carpet pythons though---too skinny . The only other snake I really want is a boa; I love red-tails, but they get too big for me so preferably I'd want a locality like Pearl Island or Hogg Island. I need a snake who can live in a T-8 or similarly-sized enclosure.

I already have 2 BPs and don't want more than 4 snakes total. . .so I have to be choosy!

I'm not very experienced with bloods but from what I've seen they can be a handful and they aren't forgiving if you make any mistakes. Maybe you should get a smaller sized boa species. Maybe look into blood boas, leopard boas or dumerils boas, though they can get kinda big. I'd almost recommend something like a rainbow boa but they aren't as heavy bodied and their care is a little more advanced.