Noun: janitor fish
| Singular | janitor fish |
| Plural | janitor fish; janitor fishes |
Sample Sentences
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The janitor fish infestation that has plagued Marikina River and Laguna de Bay has also spread to Mindanao, and is now threatening to run riot across the delicately balanced ecosystem of Asia’s largest marshland, the Agusan Marsh in Agusan del Sur. [2006 June 6, Mike Baños, “Janitor fish threatens Asia's largest marshland”, in Philstar.com:]
Nouns inflected like janitor fish
saltus,
beta fish,
paleofish,
airbreathing catfish,
black rhinoceros,
torrentfish,
megahertz,
pan fish,
solar plexus,
peltops,
yellow perch,
numb-nuts,
springfish,
pilot fish,
FPS,
janitor fish,
seafish,
parados,
Mediterranean parrotfish,
cockfish, etc. (List truncated at 20 nouns)
Etymology
From janitor + fish, coined by the Filipino locals and as well as the aquarium fish enthusiasts for its ability to clean aquaria by eating algae and fish excrements.