Channa aurantimaculata (Orange-spotted Snakehead)
Channa bleheri (Rainbow Snakehead)
Channa andrao (Fireback Snakehead)
Channa gachua (Dwarf Snakehead)
the first three grow up to 10 to 14 inches while the last one will grow to about 6 to 8 inches, being the smallest one in size. I have channa micropeltes(Giant snakehead). They are pretty fun fish.