Florida Crayfish (Procambarus alleni)
| Florida Crayfish Procambarus alleni | |
|---|---|
 | |
| Name | Florida Crayfish |
| Name Lat. | Procambarus alleni |
| Family | Freshwater Crayfish |
| Family lat. | Cambaridae |
| Order | Decapoda |
| Order lat. | Decapoda |
| Origin | North America |
| Habitat | Streams, swamps |
| Diet | Carrion, leaves, crayfish food |
| pH | 6.0-8.0 |
| Behavior | Aggressive |
| Keeping | Individual, pair, group |
| Care Level | Moderate |
| Reproduction | Egg layer |
| Breeding | Moderately difficult |
| Life Span | 3-6 years |
| Protection | No |
| Metric Units | |
| Size | 12 cm |
| Temperature | 15-30 °C |
| Hardness | 5-15 °dH |
| Aquarium | 100 l |
| US Units | |
| Size | 4.7" |
| Temperature | 59-86 °F |
| Hardness | 89-267 ppm |
| Aquarium | 25 gal |
Distribution and habitat
The Florida crayfish originates from Florida (USA). It lives mainly in stagnant or weakly flowing waters, but also in swamps and floodplains and can survive dry periods when buried in moist soil.
Maintenance
They need a well-structured aquarium with roots, stones and robust plants, with hiding places (caves, crab tubes) and a moderate current. The substrate should be sand or gravel, partially covered with foliage (e.g. sea almond leaves, oak leaves).
No ammonia, ammonium and nitrite should be detectable in the aquarium water, the nitrate value should not exceed 100 mg/l. To ensure water quality and oxygen content, a filter and heater adapted to the size of the aquarium is required, as well as lighting for the species-appropriate day-night rhythm of the animals. When choosing the filter, special care should be taken to ensure that the animals cannot be sucked in.
Diet
They feed on animal organisms, carrion and dead plant material. They prefer live food, such as daphnia, artemia and fish, which is also accepted in frozen form, as well as foliage (e.g. oak, beech, maple, birch), food tablets, granulated and flake food. Occasionally, vegetable food in the form of spirulina, kelp or scalded leafy vegetables should be offered.
Regular and varied feeding promotes health and prevents deficiency symptoms. Unaccepted food must be removed after 2-3 hours.
Behaviour and compatibility
They behave aggressively within the species, but also towards other crayfish, therefore keeping several pairs or groups is only recommended in a much larger and richly structured tank. They can be socialized with shrimps, snails and smaller peaceful fish, but it is better to keep them in a species tank.
Basically, only compatible animals with similar demands on water quality and water temperature should be socialized.
Reproduction and breeding
Males can be identified by the pointed claws and the gonopods (mating styli) on the abdomen of the underside of the body. Males have 3 swimming legs, females 5. During mating, the male turns the female onto her back shortly after her molt and transfers a sperm package with his gonopods. The female carries the eggs (50-100 of them) on her pleopods (webbed feet) and supplies them with oxygen by movement (fanning). Dead or non-developing eggs are eaten by the female. The young hatch after about 4 weeks.
Important
They are not particularly demanding on water quality and can stay on land for a long period of time (semiterrestrial). It can happen that a Florida crayfish is missing a claw. Usually these are females that have lost a claw during mating. The missing claw slowly grows back during the following molts.
The foliage (e.g., sea almond tree or oak) encourages the development of microorganisms as it rots, providing a valuable secondary food source.
The well-being of the animals should be monitored regularly. Temperature should be checked daily, pH, hardness and nitrate levels at least every 14 days. Regular partial water changes are recommended, even when contaminant levels have not yet reached the upper limit. Sudden changes in water quality should be avoided. Newly introduced animals must be accustomed slowly to the water in the aquarium.
Further literature can be found in your pet store.
References
Text: Barbara Pachner; Image: Franz Lowak
Source: LUKHAUP & PEKNY (2008): Süßwasserkrebse aus aller Welt, Dähne Verlag; ENGELMANN & LANGE (2011): Zootierhaltung - Tiere in menschlicher Obhut: Wirbellose, Verlag Harri Deutsch