Hypnea cervicornis

J.Agardh 1851

Hookweed

Range: Western Central Atlantic Ocean.

Natural Environment: Inhabits intertidal areas and rockpools/tidepools and other high nutrient content rocky coastal areas.

Aquarium Suitability: An unsuitable aquarium species and should be removed when first seen, as it will quickly spread and cover wide areas of the substrate and also grow on coral tissue.

Potential Control Species: Fish:Acanthurus achilles, Acanthurus japonicus, Acanthurus leucosternon, Acanthurus lineatus, Acanthurus olivaceus, Acanthurus pyroferus, Ctenochaetus hawaiiensis, Ctenochaetus striatus, Naso brevirostris, Naso lituratus, Zebrasoma desjardinii, Zebrasoma flavescens, Zebrasoma scopas, Zebrasoma veliferum and Zebrasoma xanthurum.

Urchin Diadema setosum

Taxonomy:

Kingdom: Plantae

Phylum: Rhodophyta

Class: Florideophyceae

Order: Gigartinales

Family: Cystocloniaceae

Genus: Hypnes

FYI: Now technically listed as Hypnea spinella (C.Agardh) Kützing, 1847.