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Orange Eye Blue Tiger shrimp (OEBT) are a stunning blue tiger variant with distinctive orange eyes - one of the most visually unique shrimp in the hobby. The orange eyes are the breeder-selected genetic marker that distinguishes OEBT from standard blue tigers. Hardier than Taiwan Bee, moderately demanding parameters, suitable for intermediate keepers.
Native range: Selectively bred. Aquarium specimens enter the trade primarily through captive-bred sources - selective breeding programs in Taiwan, Germany, the United States, and Indonesia produce the color-line specimens you find at LFS and online vendors. Wild-caught stock of any shrimp species is increasingly rare and often less hardy than captive-bred lines.
Tank size: 10 gallons is the practical minimum. Shrimp bioload is low - colonies of 50+ adults thrive in 10-gallon tanks with adequate biofilm and filtration. Water parameters: pH 6.5-7.5, temperature 65-75°F, hardness 4-10 dGH, 2-6 dKH. Filtration should be sponge-filter or matten-filter based to prevent shrimp and shrimplets from being sucked into intakes. Avoid HOB filters with strong suction unless modified with sponge pre-filters.
Substrate: depends on species. Neocaridina tolerate any inert substrate (gravel, sand, or planted aquarium soil). Caridina (CRS, Taiwan Bee) require active substrate (ADA Amazonia, Fluval Stratum) that buffers pH down to 5.5-6.8 and maintains soft water. Sulawesi shrimp require buffered alkaline substrate or crushed coral additives.
Plants: Java moss, Christmas moss, Subwassertang, and other fine-leaved species are essential - they provide grazing surface area for biofilm (the primary shrimp food) and cover for shrimplets. Heavy planting dramatically improves colony health and breeding rates.
Orange Eye Blue Tiger Shrimp (OEBT)s eat biofilm continuously and supplement with periodic protein/algae feedings. Primary diet: Biofilm, algae, veggies, Caridina-friendly pellets. Feed sparingly - shrimp can survive on biofilm alone in mature tanks for weeks. Over-feeding is the primary cause of water quality problems in shrimp tanks. Best feeding practice: small amount once every 2-3 days, removed within 2-4 hours if uneaten.
Supplemental foods worth rotating: Indian almond leaf (for tannins + grazing surface), mulberry leaf, blanched spinach/zucchini/cucumber (small pieces, removed after 24 hours), snowflake food, mineral stones (Montmorillonite clay), and species-specific commercial foods like Bacter AE, Shrimp Cuisine, or Borneo Wild biofilm enhancers.
Safe: Other Caridina tigers (separate display), otocinclus.
Avoid: Predatory fish, Neocaridina in shared parameters.
Adult shrimp can defend against most very small fish, but shrimplets (newly-hatched, sub-3mm) are essentially defenseless and will be eaten by anything fish-shaped. Species-only tanks produce the most prolific colonies; community tanks with fish work but reduce shrimplet survival rate significantly.
Active. Orange eye trait is recessive - expect ~25% of offspring to lack orange eyes in mixed colonies. Breeding triggers across most shrimp species: stable parameters, biofilm-rich environment, varied diet, moderate temperatures (slightly warmer than maintenance temperature often triggers breeding cycles). Female shrimp signal readiness by carrying eggs under the tail (called "berried" - eggs visible as a clutch of small spheres). Male shrimp pursue females immediately after molting.
Orange eye trait dilution; standard Caridina parameter sensitivity.
Recessive genetic mutation selectively bred to be consistent in the OEBT line. Distinguishes from standard blue tigers (which have black eyes).
No - OEBT is Caridina serrata; Blue Bolt is Caridina cantonensis (Taiwan Bee line). Different species, different parameters.
$8-25 each depending on color and eye intensity.
Yes - same species. Offspring will be mixed colors and may include orange-eyed and normal-eyed individuals.
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