Pterophyllum scalare, one of the three classic Angelfishes

Pterophyllum scalare (Angelfish). I haven't kept Angels since before the "plague" that swept through the tropical fish market starting in 1986. I tend to scorn the weirder mutant forms of Pt. scalare. The angels I long to keep are the wild green Pt. altum, those "tall" ("altum") Angels with the greenish cast and warm brownish black stripes and elegant natural finnage. They come from blackwater and clear tributaries of the upper Rio Negro and the Orinoco, in southern Venezuela and Colombia. They can get to be unexpectedly large, maybe a foot tall, and they're fierce, like real cichlids. ...and delicate and demanding, riddled with their natural intestinal parasites and scarcely ever spawned... everything you could ask for in a Cichlid (sigh).
 
Angelfish links.  Pterophyllum at FishBase. Pterophyllum at Wikipedia. Two good articles , one posted by Barbie at Fishaholics, the other, Cindy Hawley's article on breeding Angels, is archived at FINS. James Kaufman and his daughter Annie take incredible microphotos of developing Angelfish fry. And he shows you how he goes about it. Wayne Leibel discusses the aquarium history, care and breeding of the three genera of wild "natural" Angelfish in  "Cichlids of the Americas: Angelfish,"  archived at FishChannel. Bob Fenner's article, "The Cichlids called Angelfishes" is archived at WetWebMedia.
 
Angelish forums.  Mike Wiegand hosts The Angelfish Forum II with one board that's devoted solely to Pt. altum and other wild Pterophyllum strains!