Care guide, husbandry, breeding, disease, sourcing, and tankmate intelligence on Peacock Mantis Shrimp - written by the Fast Aquatics editorial team and cross-verified against vendor records on the live marketplace.
Peacock Mantis Shrimp (Odontodactylus scyllarus) is a marine invertebrate kept by aquarists for reef-tank cleanup, biological control of pests, or aesthetic display. Demanding requirements make this species best for keepers with established mature systems and proven track records.
Where Peacock Mantis Shrimp comes from
Peacock Mantis Shrimp (Odontodactylus scyllarus) is native to Indo-Pacific reef ecosystems, with wild populations distributed across coral reefs, sandy lagoons, and rocky tide pools. Captive specimens are typically wild-collected; some species are starting to be aquacultured but most Peacock Mantis Shrimp sold today still comes from wild reef collection. Sustainable sourcing matters - look for vendors who can verify their collection practices, and consider aquacultured alternatives when available.
Peacock Mantis Shrimp tank size and setup
Peacock Mantis Shrimp requires a minimum of 30 gallons for healthy adults. The minimum is based on the species' adult size (7 inches), territorial range, and behavior pattern. Most Peacock Mantis Shrimp sold at small juvenile size will reach full adult size within 12-24 months and the system must be sized to the adult, not the juvenile.
For a Peacock Mantis Shrimp setup: mature reef tank with stable parameters, live rock for cover, sandbed substrate (1-2"), reef-grade lighting if photosynthetic, and a fully-cycled biological filter at least 6 weeks old. Newly-cycled tanks under 6 weeks crash the parameters that Peacock Mantis Shrimp depends on.
Peacock Mantis Shrimp requires standard reef parameters held tightly stable: Temperature: 76-80°F (24-27°C) Specific gravity: 1.025 (refractometer-measured) pH: 8.1-8.4 Alkalinity: 8-9 dKH Calcium: 420-450 ppm Magnesium: 1300-1400 ppm Ammonia + nitrite: Both 0 ppm Nitrate: Under 10 ppm Copper: 0 (lethal to invertebrates)
Peacock Mantis Shrimp is sensitive to copper - never medicate the display tank with copper if Peacock Mantis Shrimp is present. Stable parameters beat perfect parameters.
What Peacock Mantis Shrimp eats
Peacock Mantis Shrimp is a carnivore. Eats meaty foods - frozen mysis shrimp, brine shrimp, finely chopped seafood, and quality carnivore pellets. Live food (PE Mysis, live brine, live blackworms) triggers feeding response in stressed or new arrivals. Feed 2-3 times weekly for adults; daily for growing juveniles. Feed Peacock Mantis Shrimp appropriately for its size + activity level. Overfeeding is the #1 cause of water-quality crashes in tanks of all sizes.
Peacock Mantis Shrimp tankmates and compatibility
Peacock Mantis Shrimp is generally peaceful and compatible with most reef community species. Avoid keeping with predatory fish that view inverts as food: large wrasses (especially halichoeres + thalassoma), triggerfish, pufferfish, and certain large angelfish. Multiple Peacock Mantis Shrimp can share a tank but compete for food.
Browse care guides for tankmate-compatibility tables for Peacock Mantis Shrimp and similar species.
Peacock Mantis Shrimp adult size and lifespan
Peacock Mantis Shrimp reaches 7 inches at adulthood with a captive lifespan of 4-6 years with proper care. Many marine inverts molt periodically; provide adequate calcium and a stable parameter regime to support healthy molts.
Can you breed Peacock Mantis Shrimp?
Peacock Mantis Shrimp breeding in captivity ranges from straightforward (some shrimp, snails) to nearly impossible (most starfish, urchins) due to pelagic larval requirements. Captive-bred specimens are increasingly available from sustainable aquaculture facilities; check with vendors before assuming wild-caught origin.
Common Peacock Mantis Shrimp diseases and problems
Peacock Mantis Shrimp is sensitive to copper, ammonia spikes, low oxygen, and rapid parameter swings. NEVER use copper medications in a tank with Peacock Mantis Shrimp. Symptoms of stress: reclusive behavior, color loss, refusal to feed, abnormal molting (incomplete or stuck molts). Most Peacock Mantis Shrimp deaths trace back to acclimation shock or parameter mismatch - drip-acclimate over 45-60 minutes when adding to a new tank.
Where to buy Peacock Mantis Shrimp online
Peacock Mantis Shrimp is sold at LFS (local fish stores), online retailers, and direct from breeders/wholesalers. Pricing varies widely by source, size, and quality:
Browse live Peacock Mantis Shrimp from vetted Fast Aquatics vendors with carrier-tracked overnight shipping (FedEx Priority + UPS Next Day), climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims. Captive-bred or aquacultured specimens cost more upfront but arrive healthier and integrate faster.
Peacock Mantis Shrimp FAQ
How big does Peacock Mantis Shrimp get?
7 inches at adulthood within 12-24 months.
How long does Peacock Mantis Shrimp live?
4-6 years with proper care.
What is the minimum tank/pond size?
30 gallons, with larger systems strongly recommended.
Is Peacock Mantis Shrimp hard to keep?
Peacock Mantis Shrimp is rated expert difficulty.
What does Peacock Mantis Shrimp eat?
Peacock Mantis Shrimp is a carnivore; appropriate diet matches its natural feeding pattern.
Peacock Mantis Shrimp taxonomy and care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.