Description
Livestock Profile
Overview
- Quarantine Method Summary
- Quarantine for at least 2 weeks in a separate tank with stable water parameters.
- Disease Sensitivity
- Low
- Medication Sensitivity
- High; avoid copper-based medications.
- Short Description
- A vibrant green sea slug known for its algae-eating habits and unique appearance.
- Care Overview
- Requires a well-established tank with plenty of algae and stable water conditions.
- Compatibility Notes
- Generally peaceful; can be kept with other peaceful invertebrates and fish.
- Aquascape Notes
- Provide plenty of live rock and algae for grazing.
- Special Requirements
- Needs a mature tank with abundant algae growth.
- Quarantine Notes
- Monitor for signs of stress or disease during quarantine.
Identity & Taxonomy
- Scientific Name
- Elysia crispata
- Genus
- Elysia
- Species
- crispata
- Authority Name
- Linnaeus
- Authority Year
- 1758
- Primary Common Name
- Lettuce Nudibranch
- Slug
- elysia-crispata
- Native Region
- Caribbean Sea
- Native Habitat
- Shallow coral reefs and seagrass beds
Care & Behavior
- Adult Size
- 2 – 4 in (5.1 – 10.2 cm)
- Lifespan
- 1 – 2 years
- Minimum Tank Size
- 20 gal (75.7 L)
- Feeding Frequency
- Daily
- Special Diet Notes
- Herbivorous, primarily feeds on algae.
- Schooling Required
- No
Water & Environment
- Temperature
- 72 – 82 °F (22 – 28 °C)
- pH
- 7.8 – 8.4
- GH
- 8 – 12
- KH
- 8 – 12
- Salinity
- 1.02 – 1.03
- Alkalinity
- 2.5 – 4.5
- Calcium
- 400 – 450
- Magnesium
- 1200 – 1350
- Flow Level
- Moderate
- Lighting Level
- Moderate to High
- Nitrate Max
- 10
- Phosphate Max
- 0.03
Compatibility & Breeding
- Sexual Dimorphism
- Males and females are similar in appearance.
- Plant Safe
- ✓
- Reef Safe
- ✓
- Invertebrate Safe
- ✓
- Coral Safe
- ✓
- Shrimp Safe
- ✓
- Snail Safe
- ✓
- Predatory Risk
- ×
- Fin Nipper
- ×
- Territorial
- ×
- Venomous
- ×
- Jump Risk
- ×
- Escape Risk
- ✓
- Bred In Captivity Common
- ×
- Wild Caught Common
- ✓
- Egg Layer
- ✓
- Livebearer
- ×
Quarantine
- Recommended Duration
- 14 – 30 days
- Quarantine Required
- Yes
- Observation Only
- No
- Prophylactic Treatment
- No
- Copper Safe
- No
- Formalin Safe
- Yes
- Praziquantel Safe
- Yes
- Methylene Blue Safe
- Yes
- Hyposalinity Safe
- No
- Freshwater Dip Safe
- No
- Medication Notes
- Avoid copper-based medications due to sensitivity.
- Isolation Requirements
- Isolate from other species during quarantine.
- Food Training Needed
- No
- Acclimation Notes
- Acclimate slowly to prevent shock.
- Common Qt Issues
- Monitor for signs of stress or disease.
- Best Practice Summary
- Maintain stable water parameters and provide adequate food sources.
Common Names
| Name | Normalized Name | Language | Region | Primary | Sort |
|---|---|---|---|---|---|
| Lettuce Nudibranch | lettuce nudibranch | en | Yes | 1 |



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