Across
- 5. Grow lights and pumps both require this form of energy
- 6. Aquaponics is considered more environmentally ________
- 8. Fish food often contains wild-caught fish ________
- 10. Barramundi and prawns are examples of species grown in ________
- 11. Organisms that make their own food using sunlight
- 14. Overfishing is causing fish numbers in the oceans to ________
- 18. The process where bacteria convert ammonia into nitrites and nitrates
- 20. Fish farming is also known as this
- 21. The country mentioned as having a growing aquaculture industry
- 25. The type of farming that grows plants without soil
- 26. Nitrites are converted into ________ by bacteria
Down
- 1. A farming system that combines fish farming and growing plants without soil
- 2. Aquaponics systems use up to 90% less ________ than traditional farming
- 3. Plants help clean and ________ the water in aquaponics systems
- 4. The less harmful compound that plants absorb as nutrients
- 7. Tiny living organisms that convert ammonia into safer compounds
- 9. The fish tank water provides ________ for plant growth
- 11. A device used to move water around an aquaponics system
- 12. Organisms that break down waste and help recycle nutrients
- 13. A compound created from ammonia that is still harmful to fish
- 15. Organisms that eat other organisms are called ________
- 16. Fish and plants depend on each other in a ________ relationship
- 17. Aquaponics can help improve global food ________
- 19. The API kit is used to test water ________
- 20. High levels of this substance are dangerous for fish and should be 0 ppm
- 22. A sustainable system where outputs are reused as inputs is called a “closed ________”
- 23. Waste produced by fish that can be toxic in high amounts
- 24. A common water quality test measured on a scale from acidic to alkaline