You are bidding on 3 green swordtails. 1 male and one female along with a juvenile. 

Swordtails are well-known beginner-friendly, community fish species, compatible with various other fish and environments. They have been bred for many generations, resulting in many different varieties. As livebearer fish, swordtails reproduce quickly. Males are easily identified by the distinctive "sword" on their tail (caudal fin).