Alectis indica

Alectis indica, commonly known as the Indian threadfish, is a very large schooling fish. Their base colour is metallic- silver and as juveniles they've a pentogon body shape with extremely long filaments. As they grow older their body becomes more elongated and the fins get shorter. Alectis species look very similar. A. indica can be distinguished by its a slight concavity near the eyes.

As juveniles they're found solitary in coastal waters and in estuaries probably mimicing jellyfish. As adults they roam the coastal waters over coral reefs in schools feeding on crustaceans, fishes and squids, so  watch out combining them with shrimps and fishes that fit their mouths!