yeah not a sturgeon, but a catfish ... thats one of the coolest cats ive seen, what size is your tank, somone said youll need a bigger one...i donno that looks pretty big to me. i really like the substrate too.
The reason for the bigger tank is P. sturio's extraordinarally long barbels. It's reccomended that you have a tank equivalent to twice the length of the barbels hence the need for a bigger tank. They are not cold water and they are a catfish.
i've read that, but so far mine seems to be a happy little fella and just swims around looking for something to munch on, oh and he'll eat just about anything.