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By Bob Goemans
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Nemastoma

Nemastoma gelatinosum

M.A.Howe, 1918

Red Finger Algae

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Western Atlantic Ocean: Caribbean and Gulf of Mexico, and also the Indian Ocean: Madagascar.

Natural Environment: Inhabits moderate to fairly turbulent water movement areas extending from sheltered areas with strong current flow to shallow to deep water on rough-water coastlines.

Aquarium Suitability: An extremely attractive alga attached by a single holdfast that is somewhat gelatinous with its branches filled with fluid that keeps it buoyant. Rarely seen in the hobby. Very hardy even in low light conditions, yet needs excellent water quality.

Taxonomy:

    Kingdom: Plantae

    Phylum: Rhodophyta

    Class: Florideophyceae

    Order: Nemastomatales

    Family: Schizymeniaceae

    Genus: Nemastoma/Platoma

FYI: May require iodine additions to remain healthy. A species well worth experimenting with!

Similar to Halymenia elongate.

Now technically listed a Platoma gelatinosum, (M.A.Howe) C.W.Schneider, McDevit, G.W.Saunders & C.E.Lane, 2011.

 Nemastoma gelatinosum (Red Finger Algae)
Photo © Bob Fenner
Solieria robusta Oscillatoria sp.
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