Angelfish

🌍 Overview

The freshwater angelfish is a cichlid native to the slow-moving tributaries and flooded forest of the Amazon Basin. Its tall, laterally compressed body is a natural adaptation for slipping between submerged roots and plant stems, effectively disguising it as a drifting leaf. Angelfish often form long-term monogamous breeding pairs and display cooperative biparental care of their eggs and fry, an unusually elaborate parenting behavior for a fish.

📋 Quick Facts

📜 History

The species reached print long before it reached aquariums. Ferdinand Schultze described it in 1823 from a specimen catalogued at the zoological museum of the Royal University of Berlin, filing it as Zeus scalaris among the marine dories, and it was shuffled through several other genera before Pterophyllum stuck. Live fish did not arrive in Europe until 1909, when C. Ziggelkow of Hamburg brought the first import into Germany. The angelfish then spent more than a century as a fixture of the hobby with its genome unread, until a high school student named Indeever Madireddy sequenced and assembled it on a community lab bench and published the result in October 2022.

🧠 Test Yourself