Having been deeply fascinated with the Pterophyllum genus for many years, I have found myself waist deep in research, analysing data, images and footage and even taking trips into the jungle to better understand the majestic freshwater Angelfish and the factors which influence their distribution and taxonomy. One area of recently increasing interest to me is the Rio Negro in Brasil. I have always been curious about the distribution of Pterophyllum leopoldi and the existence of disjunct populations along both the Rio Negro and Rio Solimões and in the last few years I have dedicated countless hours to uncover more …
