This huge school of Humpback Snapper that let me swim amongst them - photo taken at Meemu Atoll, Indian Ocean
You’ve just been schooled.
Fish flash
A school of fish following a duck
(Source)
School’s in by Greg JanéeVia Flickr:A school of juvenile Burrito Grunts (Anisotremus interruptus).
galuw11225.jpgby Keith LevitVia Flickr:School of Yellow Tailed Grunt (Anisotremus Interruptus) fish swimming underwater, Santa Cruz Island, Galapagos Islands, Ecuador