The Brown rivulus lives in the benthopelagic, non-migratory, freshwater, pH range: 7.0 - 7.0, dH range: 7 - 9 environment.
"little brown Rivulus" are a little more difficult that the Aphyosemions to sex , but this demonstrates some of the problems in judging. More
Brown rivulus in English
Cuba-rivulus in Danish (dansk)
cuban rivulus in English
green rivulus in English
Kuba-Bachling in German (Deutsch)
Kubarivulus in Swedish (Svenska)
Kubinskiy in Russian (русский язык)
rivulo cubano in English
rivulo cubano in Spanish (español)
Strumieniak kubanski in Polish (polski)
Viherriippuja in Finnish (suomen kieli)
溪鮰 in Chinese (中文)
溪鮰 in Mandarin Chinese