Thank you all for the input. Unfortunately, I bought the krib withoout knowing how big (3-4 inches) the adult size is. I'm hoping I got a female - I think I do but it's hard to tell. Maybe I'll try to get a picture of (her) for people to sex. She's a small one, they all were. I asked for her purposely to try and get a female.
What I'm getting to is a question: what is the adult size of a female Krib? It will look a little funny I guess but hopefully my ten would be big enough. It's planted so it's got a lot of 3D stuff. I know I won't be able to put two in there. She seems pretty happy right now, after finishing acclimation yesterday evening.
Thanks for helping.