By Bob Goemans
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Family Discosomatidae

Discosoma marmorata

Wagon-wheel Mushroom, Marble Mushroom

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Indo-West Pacific Ocean: East Africa to Central Pacific Ocean.

Natural Environment: Inhabits nutrient rich tidepools and shallow lagoons, and sometimes found on outer reef slopes.

General Husbandry: Has many different color forms, including brown, blue, green, but always has a marbled surface area.

Requires slow water movement and moderate lighting, preferably some shade.

May accept feedings of microplankton foods, and/or newly hatched brine shrimp.


    Kingdom: Animalia

    Phylum: Cnidaria

    Class: Anthozoa

    Subclass: Hexacorallia

    Order: Corallimorpharia

    Family: Discosomatidae

    Genus: Discosoma

FYI: Easily propagated from cuttings.

Possibly now placed in the Actinodiscus genus.

Experience Level: Beginner

Diet: Photosynthetic/Absorption of nutrients/ Micro plankton/detritus feeder

Temperament: Peaceful

Aquarium Environment: Reef or fish-only aquarium

Coral Safe:Yes

Fish Safe: Yes

Invertebrate Safe: Yes

Acclimation Time: 30 minutes+

Aquarium Hardiness: Hardy

Calcium (Ca): 380 - 430 mg/l

Alkalinity: 2.5 - 3.0 meq/l

Phosphate (PO4): <0.05 mg/l

Magnesium (Mg): approx. 1350 mg/l (relate to specific gravity)

Strontium (Sr) 8 - 10 mg/l

Temperature Range: 72 - 83°F (22 - 28°C)

Minimum Tank Size: 30 gallons

Lighting: PAR 50 - 150+

Water Movement: WM 1

Specific Gravity: 1.023 - 1.025

pH: 8.0 - 8.4

Iodine/Trace Elements Monitor/as necessary to maintain quality seawater.

 Discosoma marmorata (Wagon-wheel Mushroom, Marble Mushroom)
Photo © Bob Goemans
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Two Little Fishies