Across
- 4. helps clean the water
- 6. weather in general
- 7. helps hide
- 8. something to sleep on
- 9. rodent
- 12. gerbil munchie
- 13. toy in an aquarium
- 15. moving in water
- 19. rocks at the bottom of the aquarium
- 20. food
Down
- 1. rotating exerciser
- 2. tank cleaner
- 3. tank with water
- 4. member of the cat family
- 5. dry animal enclosure
- 7. going up a support
- 9. lizard type creature
- 10. the hunter
- 11. makes bubbles
- 14. amount of moisture in air
- 16. swimming creature with gills
- 17. swimmer without gills
- 18. the hunted