Haha, yes they do! I'm at work now but this morning he was summing a little more upright... And frantically. It's kind of a normal behavior for him, it seems, lol. I'm glad yours is doing better! Normally SBD like problems are not fatal.
I'm planning to give one to my sister to take back to school with her, and I'll probably post an ad on here for the rest unless someone I know wants one.
Most of them are ones I bought before I really thought much about breeding, one was a gender misidentification, and 2 of them were some I had shipped to me without a picture because the breeder promised they were good quality, which they are but out of the 3 i was sent only 1 has good finnage to my standards.