Quick Overview of the Crystal Black Caridina Shrimp
The Crystal Black Caridina Shrimp (Caridina logemanni var. “Crystal Black”), commonly abbreviated as CBS, is one of the classic staple species in high-end dwarf shrimp keeping. Reaching a compact adult size of 1 to 1.2 inches (2.5 to 3 cm), this species is famous for its crisp, high-contrast coloration consisting of alternating bands of jet black and thick, opaque snow white. Unlike Neocaridina species, Caridina shrimp are renowned for their intense, solid shell coverage and refined patterning. Social, active, and endlessly fascinating to observe, a colony of CBS shrimp provides active algae grazing while serving as a high-contrast visual centerpiece.
Tank/Plant Profiles & Environmental Requirements
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Care Level: Moderate (Requires stable, soft, slightly acidic water conditions)
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Growth Rate / Activity: Moderate Breeder; Dedicated Micro-Cleaner & Biofilm Scavenger
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Lighting: Low to Moderate (A balanced aquarium LED highlights their sharp black-and-white shell details)
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Temperature: 20°C – 25°C (Prefers slightly cooler room temperatures)
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Tank Placement: Active Substrate, Moss, Plant Leaves & Hardscape Glider
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Minimum Tank Size: 5–10 Gallons (A starting group of 10+ is ideal for establishing a breeding colony)
Local Care Tips for Bacolod Aquarists
Bacolod Water Preparation & Active Soil Recommendation: Unlike hardy Neocaridina shrimp that thrive in local municipal tap water, Crystal Black Caridina Shrimp strictly require soft, acidic water (pH 6.0–6.8, GH 4–6, KH 0–1). Because Bacolod tap water naturally contains mineral buffer hardness, it is strongly recommended to use RO (Reverse Osmosis) water remineralized with specialized GH-only Caridina salts. Always use a buffering active aqua-soil (like ADA Amazonia or Tropica Powder) as your substrate to keep pH stable and low. Keep aquarium temperatures comfortably cool during warm Negrense summer months to maintain optimum health and breeding activity.
Aquascaping & High-Contrast Moss Layout: Crystal Black Shrimp look breathtaking grazing on rich green carpets of Monte Carlo, Dwarf Hairgrass, or intricate mosses (Java Moss, Christmas Moss, Fissidens). Moss provides rich surface area for micro-biofilm development, which is vital for nourishing tiny newborn shrimplets. Frame your layout with epiphytes like Anubias Nano, Java Ferns, or Bucephalandra attached to local driftwood—just ensure the creeping rhizomes of these epiphytes remain completely exposed above the active soil to keep them from rotting!
Dietary Care & Safe Tankmate Harmony: CBS shrimp spend all day picking at micro-algae, biofilm, and organic decay. Supplement their diet daily with specialized Caridina shrimp pellets, spirulina powder, mineral blocks, and occasional treats of blanched spinach or nettle leaves. They possess zero aggression and should only be housed alongside completely peaceful tankmates: Horned Nerite Snails, Otocinclus, Pygmy Corydoras, and ultra-small micro-schoolers (like Dwarf Pygmy Rasboras or Green Axelrodi Rasboras). Always keep a fine mesh cover over filter intakes to protect delicate shrimplets from getting pulled into the pump!
