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The client animals are typically fish of a different species , A wide variety of fish including wrasse , cichlids , catfish , pipefish , lumpsuckers , and gobies display cleaning behaviors across the globe in fresh , brackish , and marine waters but specifically concentrated in the tropics due to high parasite density .
 wrasse, cichlids, catfish, pipefish, lumpsuckers, gobies
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 wrasse, cichlids, catfish, pipefish, lumpsuckers, gobies