The bloodfin is a most pleasing fish, and it is shown to its greatest benefit when its silvery-green body is caught by a streak of daylight, which gives it a metallic sheen. The fins, as might be expected, are red. Bloodfins are effortlessly fed, well behaved, and very active, which are all very desirable qualities.
Breeding is as in the standard description. The eggs are non-adhesive. Sexing is by means of a white tip to the ventral and anal fins of the male.
The red in the fins is generally a slightly darker tint in the male also, but this isn’t a very dependable indication. The breeding temperature should be 75° – 80° F and these fish seem to have a preference for alkaline water.