Aphyocharax rathbuni (Rathbun's Bloodfin)

A hardy, easy-going fish that is adaptable and does well in community tanks with other peaceful species. Similar to the bloodfish, Aphyocharax paraguayensis, but with the black and white markings on the dorsal and anal fins.

Does well in moderately hard, slightly alkaline water, but for breeding purposes needs to be kept in soft, acid water.

Fish information (behaviour and breeding):

A peaceful schooling fish that should only be kept with other small, quiet species. Pencilfish, hatchetfish, and Corydoras catfish would all make ideal companions.

Can be bred, though not considered to be easy. These fish need to be conditioned carefully with good live foods and maintained in soft, acid water. Eggs are scattered among plants (Java moss is ideal). The eggs are small and prone to fungus. The fry hatch after a couple of days and then use up their egg sac; only when this has been consumed will they eat small live foods such as infusorians and tiny crustaceans (e.g., newly hatched brine shrimp).

Family Group: Characins
Distribution Paraguay basin, South America
Temperature 23-28C
Size 5 cm
Water Parameters Neutral water conditions preferred
Water PH 6.0-7.5

Useful sources of information:

For a well illustrated and detailed reference guide on this and many other fish, consider the Baensch Aquarium Atlases. Volume 2 includes this species as well as other exotic tropical fish. You can buy these books here.

Shop stock

The latest shops to have this fish stocked in-store are listed below. Click on a shop name for full shop details, or click the link below the shops to view ALL shops that stock this fish.

The WaterZoo Peterborough PE1 2PE View shop
Amwell Aquatics - Epping Epping CM16 6LX View shop
Maidenhead Aquatics @ Crowland Peterborough PE6 0JB View shop
Pond Life Aquatics London NW7 1AS View shop
Maidenhead Aquatics @ Lincoln Lincoln LN6 9BY View shop

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