Species Comparison
Black Ruby Barb vs Cardinal Tetra
Verdict:Compatible
Side-by-side specs
Barbs
Family
Tetras
2.5″
Adult size
2″
30gal
Min tank
20gal
72–79°F
Temperature
73–81°F
6–7.5
pH
4.5–7
peaceful
Temperament
peaceful
6+
Schooling
6+
mid
Water level
mid