At least four subspecies of this substantial species are known: G. a. atripinnis and C a. martini (Martin’s Black-finned Goodeid) from Rio de Morelia and Lago de Cuitzeo (Michoacan), G a. luitpoldi (Luitpold’s Goodeid) from Lago de Patzcuaro (Michoacan), and G a. xaliscone from Laguna Chapala (Jalisco). They differ slightly in coloration and small details but have similar characteristics and requirements.
- Durango and Jalisco in Mexico.
- Males up to 4 3/4in (12cm); females up to 8in (20cm).
- Occasional fin- nipper, best kept as a shoal in a species tank set up specifically for this species.
- All foods accepted; a vegetable component is essential.
- Spacious, well- planted tank with some floating vegetation and some open swimming spaces. Alkaline, medium-hard water is preferred. Temperature range: 64-75 F(18-24C).
- Around 50 fry produced every 6-8 weeks.