Pterocaesio digrammais commonly referred to as Doubleline fusilier, Black-tipped Fusilier, Double Stripe Fusilier, Double-lined Fusilier, Twin Yellow-striped Fusilier, Two-stripe Fusilier. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic hazard unknown.
Fusiliers are not suitable for home aquariums due to their high swimming requirements, this of course then applies to the two-striped fusilier Pterocaesio digramma.
The Fusilier is a slender species usually seen in coastal areas in schools far above the bottom, over coral reefs, near coastal, lagoon and seaward reefs in midwater.
The double-lined fusilier can usually be identified by its coloration. During the day it is blue to green dorsally, white ventrally and has black caudal fin tips, at night this changes to a reddish coloration, see photo by Rickard Zerpe.
There are always two thin yellow to orange stripes running down the sides of the body, the upper stripe runs from the nape to the caudal peduncle and follows the dorsal body profile, the lower stripe follows the lateral line from the eye to the caudal fin base.
Another striking feature of this fusilier species is the very dark red to blackish color patterns in the caudal fin tips.