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No Entry Shrimp
Caridina logemanni
📍 Taiwan selective breeding
The No Entry Shrimp is a striking freshwater shrimp characterized by bold red and white banding or a distinctive 'no entry' pattern on its body and legs. This selectively bred variety displays vibrant contrasting coloration that makes it highly sought after by aquarists. The pattern typically features red bands interrupted by clean white segments, creating a visually dramatic appearance.
Care Guide
Diet
No Entry Shrimp are detritivores that graze on biofilm, algae, and decaying plant matter. Supplement with high-quality shrimp pellets (Shirakura, Mosura) and blanched vegetables like spinach or zucchini 2-3 times weekly. Ensure adequate calcium and minerals through specialized shrimp supplements or mineral-rich substrates.
Behavior
These shrimp are active grazers, constantly foraging along the substrate and plants for food. They exhibit typical molting behavior every 4-6 weeks and should have plenty of hiding spots during vulnerable post-molt periods. Colony dynamics are peaceful; they gather in groups but do not exhibit aggressive territorial behavior.
Breeding
No Entry Shrimp require soft, acidic water (pH 5.5-6.5, GH 4-6) to successfully breed and produce viable offspring. Females carry berries (eggs) for 20-24 days before releasing fully-formed miniature shrimp. High-quality water conditions and stable parameters are essential for consistent breeding success.
Tank Mates
Small, peaceful algae eater that shares similar water parameters and does not prey on shrimp
Tiny, non-aggressive fish that thrive in soft acidic water; minimal predation risk
Very small peaceful fish compatible with shrimp-focused tanks
Larger shrimp species that coexist peacefully without competing for resources
Provides essential grazing surfaces, shelter, and biofilm production
Common Diseases
Molting Failure / Incomplete Molt
Shrimp unable to fully shed exoskeleton; stuck in molt; lethargy; death if untreated
Ensure adequate calcium and minerals via supplements or mineral-rich substrate; maintain stable water parameters; provide hiding spots; perform gentle water changes
Bacterial Infection / Muscular Necrosis
White spots or patches on body; discoloration; lethargy; loss of appetite; rapid deterioration
Perform 25-30% water changes; increase aeration; remove affected individuals to quarantine; avoid copper-based treatments; maintain pristine water quality
Vorticella (Ciliate Infection)
White fuzzy coating on body and antennae; lethargy; difficulty moving; reduced feeding
Increase water changes and aeration; add Indian almond leaves or tannins to lower pH slightly; maintain optimal water parameters; quarantine severely affected shrimp
Copper Toxicity
Sudden death; erratic swimming; paralysis; loss of color
Perform immediate large water change; use copper-free medications only; check all supplements and fertilizers for copper content; use RO water if tap water contains copper
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Quick Facts
- diet
- detritivore/omnivore - biofilm, algae wafers, specialized shrimp food
- lifespan
- 1-2 years
- max size
- 3.5 cm (1.4 in)
- tank size
- 5 gallons minimum
- temperament
- peaceful
Water it likes
- ph
- 5.5-6.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 4-6 dGH
- temperature
- 72–79°F (22–26°C)