HELP: Seaweed, Algae and Kelp Kaiju?

I'm trying to gather a list of Seaweed / Kelp / Algea-based giant monsters and similar characters (see Huu and Kombu Infinity) from fiction, and maybe you, my readers, can help add to the following list, and what's been gathered in it thus far:

The Seaweed Monster (The Godzilla Power Hour)
Zazahn (The Return of Ultraman)
Nori-ra (The Real Ghostbusters)
The Creature of the Sargasso Sea (Boris Karloff's Tales of Mystery)
The Deadly Creature Below (Voyage to the Bottom of the Sea: Deadly Creature Below)
Killer Seaweed (The Lost Continent, 1968)
Kombu Infinity (One Punch Man)
Degijon (Colossal Kaiju Combat)
Huu (Avatar: The Last Airbender)
The Weed Creatures (Doctor Who: Fury from the Deep)
Midora (Yoshimitsu Banno's Hedorah vs Midora, tentative date / unmade film?)

UPDATED Editions:

Geboras (Manga Boys Special Edition: Gamera)
Seaweed Man (Tales to Astonish)
Chalo (Chamber of Darkness)
Spincobra (Spectreman)
Plankton Monster (Voyage to the Bottom of the Sea: The Price of Doom)
The Spirit of the Swamp (Godzilla: The Series)

Big thanks to for the suggestions.