fish15

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Across
  1. 5. Bottom zone of water.
  2. 7. Open sea area.
  3. 9. Manmade waterway.
  4. 10. Small creek.
  5. 11. Coral island ring.
  6. 12. Lacks oxygen.
  7. 14. Subsurface pull.
  8. 15. Alongside a river.
  9. 16. Underground water habitat.
  10. 17. Natural sinkhole.
  11. 18. Underwater plants.
  12. 21. Deep ocean valley.
  13. 23. Water drops sharply.
  14. 24. Salty and fresh mix.
  15. 25. Lake behind sand dunes.
Down
  1. 1. Seasonal water pool.
  2. 2. Spinning water.
  3. 3. Water temperature layer.
  4. 4. Stagnant pool.
  5. 6. Coral reef offshore.
  6. 8. Feeds into a river.
  7. 13. Large ice mass.
  8. 19. Very deep ocean.
  9. 20. Bottom sediment.
  10. 22. Lake in a valley.