Sri Lanka Dwarf Shrimp (Caridina simoni simoni)
| Sri Lanka Dwarf Shrimp Caridina simoni simoni | |
|---|---|
 | |
| Name | Sri Lanka Dwarf Shrimp |
| Name Lat. | Caridina simoni simoni |
| Family | Shrimps |
| Family lat. | Atyidae |
| Order | Decapoda |
| Order lat. | Decapoda |
| Origin | Southern Asia |
| Habitat | Streams, ponds |
| Diet | Omnivore |
| pH | 6.0-7.5 |
| Behavior | Peaceful |
| Keeping | Group |
| Care Level | Moderate |
| Reproduction | Larval stages |
| Breeding | Moderately difficult |
| Life Span | 1-2 years |
| Protection | No |
| Metric Units | |
| Size | 2.5-3.5 cm |
| Temperature | 20-30 °C |
| Hardness | 1-3 °dH |
| Aquarium | 30 l |
| US Units | |
| Size | 1"-1.4" |
| Temperature | 68-86 °F |
| Hardness | 18-53 ppm |
| Aquarium | 10 gal |
Distribution and habitat
Sri Lanka dwarf shrimp are widely distributed from the Philippines through the Indonesian Archipelago to Sri Lanka. They live in stagnant or slow-flowing waters, such as ponds, lakes, streams and rivers with dense vegetation.
Maintenance
They require a partly densely planted aquarium with many roots and a medium strong current. The substrate of dark sand or gravel should be partially covered with foliage (e.g. sea almond leaves, oak leaves), rotting plant material and mulm.
No ammonia, ammonium and nitrite should be detectable in the aquarium water, the nitrate value should not exceed 100 mg/l. To ensure the water quality and oxygen content, a filter and heater adapted to the aquarium size 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
In nature, they use the bristles of their scissor legs to rasp off growth organisms from stones, dead wood and plants
They can be fed well with autumn leaves of native trees (e.g. oak, beech, maple, birch), sea almond tree leaves as well as fresh, scalded nettle or dandelion leaves, spirulina algae and special shrimp food with low protein content (below 30%), plus spinach, freshly scalded or frozen. It is recommended to coat stones or roots with a slurry of spirulina, chlorella and other algae powder and place them in the aquarium after they have dried. Dry food for fish and crayfish, frozen or freeze-dried food as well as live food such as cyclops, daphnia, Artemia nauplii and microworms should only be offered occasionally due to the high protein content.
It is sufficient to feed them about 3 times a week. Unaccepted food should be siphoned off after about 12 hours. Regular and varied feeding promotes the well-being of the animals.
Behaviour and compatibility
They should be kept in a group of at least 10 animals. Keeping them in a species tank is recommended, but they can also be kept with small peaceful fish in a community tank with lots of moss and fine-feathered plants (hiding places)
Basically, only compatible animals with similar demands on water quality and water temperature may be socialized.
Reproduction and breeding
Females are significantly larger and have a more curved hind body.
There are 20-35 planktonic, bottom-feeding larvae released approximately every 3 weeks, which develop in freshwater. Breeding in the aquarium is well possible.
Important
They are free swimming shrimp, have a high reproduction rate and also eat fish spawn.
Foliage (sea almond, oak, beech, etc.) not only provides cover, but as it rots, it encourages the development of microorganisms that provide a valuable secondary food source. Feeding cucumbers, zucchini, peas, carrots, potatoes and peppers is discouraged.
The well-being of the animals should be checked regularly. Temperature should be checked daily, pH, hardness and nitrate levels at least every 14 days. Regular partial water changes are recommended, even if the contaminant level has 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: petdata; Image: www.aquamax.de
Source: KARGE & KLOTZ (2007): Süßwassergarnelen aus aller Welt, Dähne Verlag; ENGELMANN & LANGE (2011): Zootierhaltung - Tiere in menschlicher Obhut: Wirbellose, Verlag Harri Deutsch