Common name: Red shiner, rainbow dace, horse-head minnow, red horse minnow or shiner, rosysided dace, Asian fire barb, African fire barb, redfin giant danio, blue dace, shiner (note that the red shiner is not a dace, minnow, barb, or danio!) Scientific/Latin names: Cyprinella lutrensis, formerly Notropis lutrensis Maximum length: 2 to 4 inches (usually 3) Colors: Greenish brown, red and blue on breeding males Temperature preference: 33 to 77 degrees F, 60 to 77 degrees F preferred pH preference: 7 to 7.5 Hardness preference: Medium to hard Compatibility: Good Life span: 3 to 4 years Ease of keeping: Easy Ease of breeding: Easy