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Peppermint shrimp (Lysmata wurdemanni)
Photo: Smithsonian Environmental Research Center · CC BY 2.0 via Wikimedia Commons

Peppermint shrimp

Lysmata wurdemanni · Lysmatidae

Also known as Caribbean cleaner shrimp

Beginner

Cheap, nocturnal, and the most reliable biological control for Aiptasia anemones.

Minimum tank
40 L
Temperature
24–27 °C
pH
8.1–8.4
Adult size
5 cm
Group size
3+
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Reef & marine husbandry
Specific gravity
1.024–1.026
Reef safety
Reef safe
With corals
Occasionally picks at zoanthids or LPS when underfed.
With inverts
Peaceful.
Minimum in a mixed reef
40 L
Minimum fish-only (FOWLR)
40 L
Aggression
None.
Feeding
Scavenges continuously.
Care requirements
Minimum tank volume
40 L
Temperature
24–27 °C
pH
8.1–8.4
Hardness
8–12 dGH
Lifespan
1–3 years
Diet
Omnivore/scavenger — detritus, Aiptasia, mysis, pellets.
Care level
Beginner
Origin & habitat
Native region
Western Atlantic
Water type
Saltwater
Biotope
Rocky reef crevices
Natural conditions
Stable salinity, plenty of rock, no copper.
Behaviour & stocking
Temperament
Peaceful
Minimum group
3 fish
Swims
Bottom
Good tank mates
Clownfish
Gobies
Cardinalfish
Avoid
Hawkfish
Puffers
Wrasses
Breeding & difficulty
Breeding difficulty
Intermediate
Sexing
Hermaphrodite.
Notes
Breeds readily in reef tanks; larvae are eaten by fish.
Common ailments
Moult failure
Copper poisoning

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