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CoralbeginnerSaltwater

Palythoa

Palythoa grandis

AnimaliaCnidariaAnthozoaSphenopidae

📍 Widespread tropical reefs

Ask Finn

Large-polyped cousins of Zoanthids — drab tan-brown in the wild but cultivated morphs include greens, yellows, and reds. Hardy and fast-spreading. Contain palytoxin — handle with gloves. Excellent beginner coral.

Size2"
Min Tank30g
peaceful
Zoneall

Common Diseases

Palytoxin Poisoning (Human)

Symptoms

Skin irritation, respiratory issues, or systemic effects from handling without gloves

Treatment

Always wear nitrile gloves when handling or fragging; rinse thoroughly with fresh water if exposure occurs; seek medical attention for severe symptoms

Coral Bleaching

Symptoms

Polyps lose color and appear pale or white; reduced expansion and feeding

Treatment

Reduce light intensity gradually, check water parameters (temperature, salinity, nutrients), ensure adequate water flow, and maintain stable conditions

Bacterial Infection

Symptoms

Tissue recession, slime coating on polyps, foul odor, or visible lesions

Treatment

Perform 25% water change, improve water quality and flow, consider antibiotic treatment if severe, and isolate affected coral if possible

Predation by Nudibranchs or Flatworms

Symptoms

Polyps fail to expand, visible tissue damage, or small organisms on coral surface

Treatment

Inspect rockwork carefully, remove predators manually with tweezers, dip coral in freshwater or coral dip solution, and quarantine if needed

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Quick Facts

flow
low to medium
placement
anywhere on rockwork
difficulty
beginner-friendly
lightLevel
low to high

Stats

Community tips0
Growing in0 tanks