Does goldfish need air pump?

Related questions

1. Whats the biggest aquarium in the world?
2. Is the Shedd Aquarium free this month?
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4. Are bigger fish tanks easier to maintain?
5. Can you turn off a fish tank pump at night?
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Tags

1. #keepers
2. #those
3. #oxygen
4. #goldfish
5. #water
6. #assume
7. #tanks
8. #strictly
9. #pumps
10. #quite
11. #without
12. #bubbles
13. #suffocate
14. #surprised
15. #required
16. #often
17. #actually
18. #simple
19. #however