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CoralbeginnerSaltwater

Blastomussa

Blastomussa wellsi

AnimaliaCnidariaAnthozoaMussidae

📍 Indo-Pacific Reef Systems

Ask Finn

Blastomussa are large-polyp stony corals with fleshy, round polyps that inflate dramatically at night. They are tolerant of lower light and moderate nutrients, making them a good LPS choice for mid-level placement. They feed readily on meaty foods at night.

Size2"
Min Tank30g
peaceful
Zoneall

Common Diseases

Brown Jelly Disease

Symptoms

Rapid tissue recession, brown slime coating polyps, visible skeleton exposure

Treatment

Isolate affected coral, perform daily water changes, remove dead tissue with pipette, treat with antibiotics if severe, improve water quality and flow

Coral Bleaching

Symptoms

Loss of color, polyps appear white or pale, reduced feeding response

Treatment

Reduce light intensity temporarily, check water parameters (especially temperature and alkalinity), improve water circulation, ensure stable conditions, avoid sudden environmental changes

Parasitic Infection

Symptoms

Visible spots or lesions on polyps, excessive mucus production, polyp retraction

Treatment

Quarantine if possible, perform freshwater dips (brief, 5-10 minutes), improve water quality, consider copper-free parasite treatments designed for corals

Nutritional Deficiency

Symptoms

Pale coloration, reduced polyp extension, slow growth, weakened tissue

Treatment

Increase target feeding frequency with meaty foods, supplement with coral-specific vitamins, ensure adequate lighting for zooxanthellae photosynthesis, maintain stable water parameters

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Quick Facts

flow
Low to medium
light
Low to medium
feeding
Photosynthetic; benefits from meaty target feeding at night
tank size
30 gallons minimum
temperament
Peaceful

Water it likes

ph
8.1–8.3
calcium
400–450 ppm
salinity
1.025–1.026 SG
alkalinity
8–11 dKH
temperature
75–81°F (24–27°C)

Stats

Community tips0
Growing in0 tanks