Three-lined Catfish

[Bojangles]

How big do these grow and would they be ok in a 15 gallon tank with 1 betta?

 

[Cory_Dad]

C. trilineatus can grow up to 50 mm for males and 55 mm for females. You can easily add 6, in fact, I'd recommend 5 or 6 as they are shoaling fish.

Cheers.