By Bob Goemans
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Fishy Bizness 


Sargassum polyphyllum

J.Agardh 1848

Variable Sargassum

Not Reef Tank Suitable

Not Suitable for Fish-Only Tank

Range: Central Pacific Ocean: Endemic to Hawaii.

Natural Environment: Found on wave-swept beaches, tidepools and on reef flats. Has great variation in its morphology. This alga can withstand a wide range of environmental conditions, as it is found in areas of high salinity, high wave action, and changing temperatures. Reproduction is by vegetative fragmentation or sexual reproduction. Tough, bushy growth, ranging in size from 2 inches to 25 inches (5 - 63 cm).

Aquarium Suitability: Not considered a desirable aquarium species.

Potential Control Species: Fish: Naso brevirostris, Naso lituratus

Urchins: Diadema setosum


    Kingdom: Chromista

    Class: Phaeophyceae

    Order: Fucales

    Family: Sargassaceae

    Genus: Sargassum

 Sargassum polyphyllum  (Variable Sargassum)
Photo © Dave Paschick
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Polyp Lab