My B. Angustum is a strange beast. It's about 2.5 inch sub-adult, but thinks its a burrower. I'm sure mine is the exception to the norm. It's very laid back, and will get prettier as it gets older. It'll max out a little smaller than the rest of the brachy familyfrom what I've read. All in all, I haven't been impressed with this species, but I haven't been disappointed either.Im thinking of getting a B. angustum...Does anyone know anything about this species? Thank you. Oh, and any info on a N. chromatus would help too, since that is my second choice, lol.