Reeflings

Common name: Yellow Fungus

Scientific name: Rhytisma fulvum (Forskål, 1775)
Orange and yellow fungus macroYellow fungus on the brick walls.
Small bright yellow fungi growing from a rotten tree in Penang
yellow fungus
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General information

Rhytisma fulvum, commonly known as Yellow Fungus, is not a species suitable for reefkeeping or any kind of aquarium hobby. It is a type of fungus that affects plants, particularly trees, and is known for causing a disease called tar spot. This disease manifests as black and yellow spots on the leaves of affected plants, which can lead to premature leaf drop and reduced photosynthesis. While it is an interesting organism from a botanical and mycological perspective, it is not relevant to the aquarium trade.

Details

Lighting
50 to 150 PAR
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8.1 to 8.4
Care level
Moderate to easy Prefers stable conditions.
Flow
Moderate Mimics natural habitat.
Aggression
Peaceful

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Cnidarians
    Cnidaria
  3. Class
    Corals
    Anthozoa
  4. Order
    Soft corals
    Alcyonacea
  5. Family
    Soft Coral
    Alcyoniidae
  6. Genus
    Maple Tar Spot Fungus
    Rhytisma
  7. Species
    Yellow Fungus
    Rhytisma fulvum (Forskål, 1775)
  8. Synonyms
    Alcyonium fulvum (Forskål, 1775)
    Parerythropodium fulvum Forskal, 1775

Habitat

Rhytisma fulvum is typically found in temperate regions where it infects the leaves of hardwood trees. It is most commonly associated with maple trees, where it can be easily spotted during the late summer and fall when the characteristic tar spots become most visible.