Nugget and Fang

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Across
  1. 2. Tiny fresh water fish
  2. 3. Large main character
  3. 5. A fish's respiratory system
  4. 7. Related to the ocean/sea
  5. 8. Having or showing many large teeth
  6. 9. Something that appears to be true based on what you see or know
  7. 10. Synonym: surprised
Down
  1. 1. Living things within a habitat that eat one another: biggest to smallest
  2. 4. Small main character
  3. 6. Cannot be done or happen