Do you know your fish?

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Across
  1. 5. Toxin produced by fungus (Aspergillus spp)
  2. 6. Function of starch in fish feed
  3. 9. Captain of a ship
  4. 11. The baby of a shark
  5. 12. Poison founding puffer fish
  6. 13. Scientific name of vitamin B6
  7. 15. Common name for exophthalmos
  8. 16. Deepest lake in the world
  9. 18. Largest country in the world
  10. 19. Location (country) of the highest waterfall in the world
Down
  1. 1. Capital of Vietnam
  2. 2. Fish whose name means holy flatfish
  3. 3. Fishes that migrate from seawater to freshwater
  4. 4. Found in Chondrichthyes fish
  5. 7. Most cultured fish in the world
  6. 8. Family of the African catfish
  7. 9. Most poison fish in the world
  8. 10. Hormone responsible for mounting in crustaceans
  9. 14. Largest ocean in the world
  10. 17. Fishing gear commonly used to harvest cultured catfish