This species can be found on seaweeds like "Fucus vesiculosus" and "Ascophyllum nodosum". Tetraphlorethol C is a phlorethol-type phlorotannin found in the brown alga "Ascophyllum nodosum". They attach to algal species including "Ascophyllum nodosum" and "Fucus vesiculosus". Among the algae recorded was "Ascophyllum nodosum" var. "minor" Turn. "Ascophyllum nodosum" contains the phlorotannins tetraphlorethol C and tetrafucol A. "Fucus serratus", "F. spiralis" and "Ascophyllum nodosum" have been recorded.