SULAWESI HALEQUIN SHRIMP

Harlequin Sulawesi Shrimp (Caridina cf. babaulti), also known as Caridina cf. babaulti "Harlequin", is a striking freshwater shrimp native to the Sulawesi region of Indonesia. They are known for their colorful patterns and require specific care conditions to thrive in an aquarium. Here’s a comprehensive guide to caring for Harlequin Sulawesi Shrimp:

Tank Size and Setup

• Tank Size: A minimum of 10 gallons is recommended for a small group of Harlequin Sulawesi Shrimp. Larger tanks, such as 20 gallons or more, provide better stability in water parameters and more space for these active shrimp.
• Aquascape: Mimic their natural habitat with a setup that includes rocks, driftwood, and caves to provide hiding spots and areas for exploration. Smooth lava rocks and ceramic decorations work well. The tank should have areas of both open space and cover to help reduce stress and encourage natural behaviors.
• Substrate: Use a dark, fine-grained substrate like sand or fine gravel. Avoid sharp or rough substrates that could injure their delicate legs and antennae.
• Plants: Although not essential, hardy, low-light plants like Java fern, Anubias, or moss can be added to the tank. Floating plants can provide shaded areas and contribute to a more natural environment.

Water Parameters

• Temperature: Harlequin Sulawesi Shrimp thrive in warmer water temperatures, ideally between 78-86°F (25-30°C). Use a reliable heater to maintain a stable temperature.
• pH: They prefer alkaline water with a pH range of 7.8 to 8.4. Consistency in pH levels is crucial for their health and well-being.
• Hardness: These shrimp require hard water, with a general hardness (GH) of 6-8 dGH and a carbonate hardness (KH) of 4-6 dKH. The mineral content is essential for their exoskeleton development and overall health.
• Water Quality: Harlequin Sulawesi Shrimp are sensitive to poor water quality. Regular water changes of 10-20% weekly are necessary to maintain optimal conditions. Use dechlorinated water, ensuring it matches the tank’s temperature and parameters. A high-quality liquid rock salt or specialized shrimp mineral supplements can help maintain proper hardness and mineral content.

Filtration and Water Flow

• Filtration: Use a sponge filter or a gentle hang-on-back filter that provides adequate filtration without strong currents. Sponge filters are beneficial as they provide additional surface area for biofilm growth, which the shrimp graze on.
• Water Flow: Harlequin Sulawesi Shrimp prefer gentle water flow. Avoid strong currents that can stress them. Use tank decorations to buffer flow and reduce intensity.

Feeding

• Diet: Harlequin Sulawesi Shrimp are omnivores that feed on biofilm, algae, and microorganisms. Provide high-quality shrimp pellets or wafers, and supplement their diet with blanched vegetables such as spinach or zucchini. They also benefit from occasional live or frozen foods like baby brine shrimp, daphnia, or powdered spirulina.
• Feeding Frequency: Feed small amounts 2-3 times a week. Ensure food is consumed within a few hours to prevent water quality issues. Remove any uneaten food promptly to avoid decay.