I might sell my arrowhead pufferfish, which is wild caught from the congo, i beleive. 4 or 5 inches, handfeeds, eats anything, give it a tin can, and i bet it will eat it (dont try it). it is very healthy also
depends on your location. for instance...a 2" frontosa may go for as much as $30 here where as in Cali or Fla, you could get it for less than $10. location and demand is key!