My name is Tommy Kronkvist. I am a Swedish amateur ichthyologist born in Finland, with a special interest in Nothobranchiinae from Western and Eastern Africa. I used to be the editor-in-chief of Aqua Upsaliensis, a monthly magazine focusing on marine life and fish farming active between 1965 and the late 1990s.
A few of my Wikimedia Commons images (hover for captions):
Nothobranchius rachoviiAhl, 1926 is a species of an East African killifish in the order Cyprinodontiformes I used to breed. The picture shows an adult, male specimen hatched and photographed in one of my aquaria.
Fundulopanchax gardneri nigerianus (Boulenger, 1911) is a cyprinodontiform subspecies I used to breed. This is an adult, male specimen bred and photographed by me in one of my aquaria.