Familie: Atyidae
Harlekin-Garnele: Caridina wolterecki aus den Uraltseen Sulawesis, porzellanweiß mit rotbraunen Banden. Braucht warmes hartes alkalisches Wasser bei 26-30 °C (pH 7,5-8,5) — eine Spezialistenart.
Harlequin Shrimp is the strikingly patterned Caridina wolterecki from the ancient lakes of Sulawesi, Indonesia — Lake Poso and the Malili lake system — where it clings to rocks in warm, hard, alkaline water that would kill the soft-water bee shrimp. Its body is porcelain white broken by irregular reddish-brown bands and blotches, a harlequin pattern no other popular shrimp matches. It is a specialist in every sense: 26-30 °C, pH 7.5-8.5 and 7-12 dGH, strong light encouraging the algae it grazes, and excellent oxygenation. In the aquarium it needs a dedicated Sulawesi setup — often escarpment-style rock aquascapes with very clean, well-filtered water — and accepts algae, biofilm and spirulina-based foods. It grows to 2-3 cm, is shy at first but becomes bold in stable conditions, and breeds in freshwater, females carrying 10-20 relatively large eggs. Sensitive to nitrate and to sudden changes, it rewards the specialist with one of the most beautiful patterns in the hobby. Never mix its hard alkaline regime with soft-water caridinas.
Nur für erfahrene Halter. Very peaceful; Groups of 10 or more.
26–29 °C, stabil geführt; pH 7.5–8.5, GH 6–12 dGH.
Ausgewachsen 2–2.5 cm. Wegen seiner Lebensweise (Bottom — grazing rock and sponge surfaces) sind 30 L oder mehr sinnvoll.
Algae and aufwuchs grazer; spirulina foods. Ergänze Futter mit Frost- oder Lebendfutter.
Very peaceful; Groups of 10 or more. Gute Partner: Other Sulawesi lake shrimp — Shared hard alkaline chemistry — the only safe mix, Sulawesi snails (Tylomelania) — Same lake system, same parameters.Nicht mit Soft-water Caridina (bee shrimp lines) — Opposite chemistry; one side dies, Copper-based medications — Lethal to all invertebrates, Any nitrate-prone setup — Sulawesi shrimp demand near-zero nitrate.
Stammt aus Lake Towuti, Sulawesi, Indonesia — endemic; lebt in deep, hot, alkaline crater lake with rocky shores. Gentle current; high oxygen.
In der Zucht: breeds in freshwater. The female carries 10-20 relatively large eggs for about four weeks; hatchlings are well-developed. Success depends on rock-solid parameters and clean water rather than any trick.. Females are larger and deeper with broader banding; males slimmer with finer lines..