How long can fish survive without air pump?

Related questions

1. Why is my fish gasping for air at the top of the tank?
2. What fish can live with Dragonfish?
3. Are bigger fish tanks easier to maintain?
4. Do aquariums need bubblers?
5. Does the aquarium have wheelchairs?
6. Does Philadelphia have an aquarium?
7. Why are my fish swimming at top of tank?
8. Is the Boston Aquarium free?
9. Why does my fish stay at top of tank?
10. Are there self cleaning fish tanks?

Tags

1. #shallow
2. #maybe
3. #crowded
4. #survive
5. #conditions
6. #these
7. #water
8. #start
9. #health
10. #under
11. #really
12. #unless