Gabe,
Here is some info I found:
Puntius titteya
Common Names: Cherry Barb
Synonyms: Barbus titteya, Capoeta titteya
Family: Cyprinidae
Origin: Sri Lanka.
Main Ecosystem: Stream
Temperament: Peaceful. Cherry Barbs are timid of their own species.
Diet: Ominvore
Care: Feed with normal or vegetable flakes, or live foods. Keep dense vegetation and some floating plants in the tank. The Cherry Barb is a loner and will hide from other Cherry Barbs in these plants. Easy to keep.
pH: 6.0 - 8.0
Temperature: 23.0°C - 27.0°C (73°F - 81°F)
Hardness: 5.0°dH - 20.0°dH
Potential Size: 5cm (2")
Water Region: All
Activity: Diurnal
Breeding: Place pairs in a small, densly planted breeding tank. Remove the fish after spawning so they don't eat the eggs. The Cherry Barbs hang their eggs by a thread to the plants.
Gender: The male is heavier built and turns bright red, orange or pink near spawning time.
Comments: The Cherry Barb should be kept alone in a small tank or in pairs in a larger tank. They can be kept in larger numbers if the vegetation is dense.
Most of the other sites gave similar information - one stated they should be in groups and another suggested that they can be fin nippers.
I have never kept any barbs so I can't give you anything from personal experience. I am sure someone more in the know will give you some more insight.
Cheers, Eddie