Wild Upside-Down catfish care?

[Eoibio]

I bought 2 wild upside-down cats from an LFS today and I was wonder what size they get to and just the basic care.I have seen them going upside-down and they are really nice also is the pot belly on mines normal?

 

[Bottomfeeder]

heya eo
they reach around 5''
theyre synodontids so basic syno care
and most synodontis catfish have fat bellies

 

[Eoibio]

YAY!

 

[Eoibio]

I was wondering, I have one that is about 2'' ansd the other one is about 3'' will they fight atall?They seem to be very peacable and are staying in their own caves =D