Long Marine Creature, Perhaps a Plumber
Puzzle 17 of Aquarium Easy Pack
Question is: Long Marine Creature, Perhaps a Plumber
and the answer is: PIPEFISH
Word Meaning:
PIPEFISH — A small fish of subfamily Syngnathinae in the seahorse family, having a long thin body covered with partially ossified plates, the head long, and the jaws elongated so as to form a tubular snout.
Definitions from Wiktionary.