Tank Setup: The aquarium architecture MUST accommodate their absolute need for darkness and highly porous rockwork. A minimum 40-liter (10-gallon) marine nano-reef is sufficient.
CRITICAL REQUIREMENT: The tank MUST feature complex live rock structures with numerous tight, shadowed crevices. They will perish from stress if placed in an open, brightly lit tank with no hiding spots. They are best kept in groups of 3 to 5 individuals to encourage them to emerge from hiding.
Diet and Feeding: They are legendary, obligate carnivores famous for one specific trait:
PEST CONTROL: The Peppermint Shrimp is universally deployed by aquarists specifically to hunt and consume the devastating pest anemone *Aiptasia*. A group of Peppermint Shrimp will systematically eradicate *Aiptasia* outbreaks overnight. Once the *Aiptasia* is gone, they MUST be fed meaty scraps (Mysis, sinking pellets). If starving, they may turn on fleshy LPS corals (Acanthastrea, Scolymia) out of desperation.
Water Quality: As marine invertebrates, they are highly sensitive to water chemistry fluctuations. They demand stable tropical heat (24-27°C / 75-81°F). Specific gravity (salinity) MUST be maintained precisely between 1.023 and 1.025. They require hard, highly alkaline water (pH 8.1 - 8.4) with flawless Calcium (400-450 ppm) to successfully molt their exoskeletons. Rapid changes in salinity (osmotic shock) during acclimation or water changes will cause instantaneous death.
Compatibility and Tankmates: Compatibility requires careful consideration regarding predators and corals.
REEF CAUTION: While generally considered reef-safe, they are opportunistic; starving Peppermint Shrimp have been known to rip open fleshy LPS corals to steal food. They are 100% peaceful toward fish.
CRITICAL WARNING: They are the ultimate prey item for predators. They WILL be rapidly hunted and eaten by Hawkfish, Triggerfish, large Wrasses (Six-Line, Coris), and Pufferfish.
Aquarium Breeding: Breeding the Peppermint Shrimp in captivity is highly documented and has been successfully achieved by advanced home hobbyists and commercial aquaculture. Because they are simultaneous hermaphrodites, any two shrimp will constantly mate and carry bright green egg masses. They release thousands of pelagic larvae at night. Rearing the larvae requires dedicated, separate rearing vessels and a constant supply of live phytoplankton and enriched rotifers over a 60-day pelagic phase.
Risks and Diseases:
CRITICAL TOXICITY WARNING: Like all ornamental shrimp, they are immediately and fatally hypersensitive to COPPER (Cu) and heavy metals. They cannot survive in tanks treated with copper medications. The second major risk is lethal predation; they are frequently purchased to eat *Aiptasia*, only to be immediately eaten by a resident Hawkfish or Wrasse. The third risk is death during the molting process due to low Calcium or Alkalinity levels.