🦐 Black Tiger OE Shrimp
(also called Orange Eye Black Tiger)
Black Tiger OE is an ornamental freshwater shrimp from the Caridina cf. cantonensis group.
It belongs to the Tiger / Taiwan Bee lines and carries the OE (Orange Eyes) recessive trait, prized for its dramatic black-and-orange contrast.
🔎 Appearance
Body color: solid black to very dark gray
Pattern: classic BTOE with no pattern
Eyes: vivid orange (OE trait) — defining feature
Size: ~1.5cm (unsexed juveniles)
Females: larger, deep black
Males: smaller, deep Black
Higher-grade Black Tiger OE specimens show uniform dark body with no markings and bright orange eyes.
🧬 Genetics
Derived from Tiger / Taiwan Bee crosses
OE (Orange Eyes) is a recessive trait; maintaining it requires selective breeding
Breeding goals:
Deep black body coloration
Clear OE eyes
Defined tiger stripe pattern
🌡️ Care Requirements
As a Caridina OE line, Black Tiger OE shrimp need stable, soft, acidic water:
Temperature: 20–24°C
pH: 5.5–6.5
GH: 4–6
KH: 0–1
TDS: 100–150 ppm
Substrate: active shrimp soil recommended
Sudden water changes or high mineral content can stress the shrimp or affect molting and coloration.
🍃 Behavior & Breeding
Peaceful and colony-oriented
Best kept in species-only tanks for line stability
Breeds in freshwater
OE trait requires controlled pairings
Moderate breeding difficulty; sensitive to water parameter changes