Lighting
50-180 PAR is a flexible starting range; growth control and steady flow usually matter more than exact PAR.
Soft CoralBeginnerCare score 2/10
Green Star Polyps
Pachyclavularia violacea / Briareum violaceum
Green Star Polyps soft coral guide for identifying bright green star-shaped polyps, choosing variable placement with moderate flow, and managing closure, shedding, or tissue slump when kept near Clove Polyps and Xenia.
Compare bright green star-shaped polyps, care range, and nearby lookalikes while checking an ID.
Snapshot
Quick Care Snapshot
- Difficulty
- Beginner
- Care score
- 2/10
- Placement
- Variable
- PAR range
- 50-180 PAR
- Flow
- Moderate
- Aggression
- Low
- Growth rate
- Fast
- Minimum tank age
- 1 months
- Minimum tank size
- 10 gallons
Images
Reference Photos
Photos are shown only when a source includes reusable license metadata. Always verify appearance against the coral in your own lighting and flow.
Primary reference: Heike Wägele & Annette Klussmann-Kolb
Source: Wikimedia Commons. License: CC BY 2.0
Source: Wikimedia Commons. License: CC BY 4.0
Photo: James St. John
Source: Wikimedia Commons. License: CC BY 2.0
Ranges
Water Parameters
These ranges are approximate starting points from the coral database and should be adjusted to the stability and history of your system.
- Temperature
- 76-81 F / 24.4-27.2 C
- Salinity
- 1.023-1.026
- Alkalinity
- 7.5-10 dKH
- Calcium
- 380-460 ppm
- Magnesium
- 1250-1400 ppm
- Nitrate
- 2-25 ppm
- Phosphate
- 0.03-0.2 ppm
Care
Care Notes
Flow
moderate flow should help shedding and detritus removal while avoiding constant collapse of the colony.
Stability
For Green Star Polyps, review salinity, nutrient swings, and flow before assuming decline; temporary closure, shedding, or posture changes can be normal.
Variability
Green Star Polyps requirements vary by specimen, aquaculture history, shipping stress, and tank maturity; use these ranges as starting points, not guarantees.
Feeding
Feeding
- Benefits from feeding
- No
- Food types
- dissolved nutrients, fine suspended foods
- Frequency
- direct feeding not usually needed
ID
Identification
Key features
- bright green star-shaped polyps
- purple mat
- spreading encrusting sheet
Common colors
- Green
- Purple
Similar coral references
How to tell apart
Green star polyps grow from a purple mat and retract into it; clove polyps form separate feathery stalks. For Green Star Polyps, start with bright green star-shaped polyps, purple mat, and spreading encrusting sheet before checking color. Compare it with Clove Polyps and Xenia by looking at mat or branch structure, polyp arrangement, surface shedding, and spread pattern, especially after polyps or tissue are fully extended. For soft corals, growth habit, polyp arrangement, and shedding behavior are usually more useful than a loose trade name.
Placement
Compatibility
Compatibility depends on specimen size, flow, growth, aggression, and spacing. Use these references conservatively and watch for contact over time.
Usually compatible with spacing
Use caution near
Avoid close placement with
Spacing recommendation: keep about 3 inches of clearance, then adjust based on extension and neighboring coral response.
Troubleshooting
Common Problems
Use these as troubleshooting checks, not a diagnosis. Symptoms may point to more than one issue.
Green Star Polyps closure, shedding, or tissue slumpOpen for symptoms, likely causes to check, and practical next steps.
Symptoms that may indicate it
- polyps stay closed, surface film appears, or branches look limp
- Green Star Polyps shows less normal extension, inflation, or feeding response than its recent baseline
- changes are localized rather than a confirmed single-cause condition
Likely causes to check
- normal shedding, salinity change, low indirect flow, or chemical irritation in a mixed reef
- recent placement, lighting, flow, or chemistry changes affecting Green Star Polyps
- possible irritation from neighbors, pests, detritus, or handling depending on the coral group
Quick checks
- check whether Green Star Polyps is shedding before moving it
- improve indirect flow across the surface or branches
- review recent salinity, carbon, or chemical-filtration changes in mixed reefs
Checklist
Common Mistakes
- allow normal soft coral shedding while checking flow and salinity trends
- placing Green Star Polyps before confirming bright green star-shaped polyps and its spacing needs
- using Green Star Polyps color or trade name alone instead of comparing it with Clove Polyps
- changing light, flow, and chemistry together when Green Star Polyps looks irritated
- ignoring spread control when keeping Green Star Polyps
Compare
Similar Corals
Neighbors
Compatible Corals
These corals are usually compatible with spacing, observation, and stable conditions. This is not a guarantee.
Usually compatible with spacing
Zoanthids
Zoanthus spp.
- Category
- Zoanthid
- Difficulty
- Beginner
- Aggression
- Low
Usually compatible with spacing
Mushroom Coral
Discosoma spp. / Rhodactis spp.
- Category
- Mushroom
- Difficulty
- Beginner
- Aggression
- Low
Usually compatible with spacing
Leather Coral
Sarcophyton spp. / Sinularia spp. / Lobophytum spp.
- Category
- Soft Coral
- Difficulty
- Beginner
- Aggression
- Moderate
FAQs
FAQs
Are Green Star Polyps beginner friendly?
Green Star Polyps can be beginner friendly in a stable reef, but still need acclimation, space, and observation after moves.
Where should Green Star Polyps be placed?
Start Green Star Polyps on a movable frag plug or isolated rock so it can be adjusted without disturbing the main aquascape. Use 50-180 PAR and moderate flow as a starting point, then adjust from tissue extension, color, and nearby coral response.
Do Green Star Polyps need food or just stable nutrients?
Green Star Polyps do not usually need direct feeding. The database lists dissolved nutrients and fine suspended foods and notes: direct feeding not usually needed. For soft-coral style care, stable nutrients and enough flow to keep surfaces clean are the main checks.
Can Green Star Polyps spread onto nearby rock?
Give Green Star Polyps about 3 inches of clearance as a starting point. Its database aggression level is Low. Use caution near Clove Polyps and Xenia. Avoid close placement with Montipora Capricornis and Chalice Coral. Compatibility is not a guarantee, so check contact points as colonies expand. For spreading or mat-forming corals, also watch the edge of the colony so it does not grow into neighbors unnoticed.
What should I check if Green Star Polyps look stressed?
Use this as a troubleshooting check. For Green Star Polyps, polyps stay closed, surface film appears, or branches look limp and Green Star Polyps shows less normal extension, inflation, or feeding response than its recent baseline can indicate Green Star Polyps closure, shedding, or tissue slump. Likely causes to check include normal shedding, salinity change, low indirect flow, or chemical irritation in a mixed reef and recent placement, lighting, flow, or chemistry changes affecting Green Star Polyps. Start with these database checks: check whether Green Star Polyps is shedding before moving it and improve indirect flow across the surface or branches.
What should I check before moving Green Star Polyps?
For Green Star Polyps, review salinity, nutrient swings, and flow before assuming decline; temporary closure, shedding, or posture changes can be normal. The database lists 1 month as the minimum tank age and 10 gallons as the minimum tank size. With soft corals, temporary closure or posture changes can happen, so compare against the recent baseline before moving it repeatedly.
Coral Identifier
Identify Green Star Polyps.
Compare likely matches.
Use the app to compare photos, lookalikes, and key visual clues when you want a second pass on an ID.
Compare bright green star-shaped polyps, care range, and nearby lookalikes while checking an ID.
Photo-based coral IDReference photosLikely matches
