those are delhezis. they don't have great markings on them since they're most likely farm bred from asia. around $20 is about the average for that size.
if the belly is white then with those markings definitly a delhzi, mine looked like that at that age and in 6 months grew to about 8-10" and still gowing, fun to watch and a great hunter, rather small mouth but will still take a goldfish when the oppurtunity arises!!!