This is the fish generally regarded within the hobby as the “true” Bloodfin, although A. rathbuni (Rathbun’s Bloodfin) can exhibit even deeper red coloration. Corning from an area a little distance from the genuinely tropical zones of South America, this species can tolerate coldwater aquarium temperatures as long as they are not allowed to drop excessively. However, best coloration is exhibited when kept within a tropical regime. The species is long-lived, with some specimens reportedly attaining an age of ten years.
Other common name
- Argentinian Bloodfin
- Aphyocharax rubripinnis
- Uncertain (classified by some authors as Aphyocharacinae)
- Mainly Parana River (Argentina).
- Up to 3in (7.5cm) reported, but usually smaller.
- Peaceful shoaler.
- Wide range of commercial diets and livefoods accepted.
- Well planted, with some open spaces recommended. A dark substratum helps show these fish to good effect. Water chemistry not critical, but pH values above 8 should be avoided. Temperature range: 64-82°F(18-28°C).
- Soft, acid water recommended. Eggs are scattered, either in the open or among vegetation (usually in the morning), and may be eaten by the parents. Hatching takes about 1 1/2 days.