I don't think a fish should get any air
you should probably get an air pump but if it doesn't work for a while that means, they should just not have as much energy you can get oxygenation pills at most pet stores that deal with fish or/and fish stuff.
When it jumps in the air, since in the air the fish dont got much control of it´s movement.. when it´s jumped it´s not much it can do.
fish need air because they won't be able to breath if they didn't have air, and fish need air badly because they spend most time in the water. fish need air as much as we do.
Your fish should only have a pinch of its food everyday.
They have air population
hj//////
yes yes it depend if you fish to much because the pther animals which survive on fish should at least get some fish can survive on their fish diet yes yes it depend if you fish to much because the pther animals which survive on fish should at least get some fish can survive on their fish diet
it depends. for most fish it should be pH7-pH8 but some species like it at pH6
you should eat as much as u like
Never, not unless it is dead. It needs it.
no it will dissipate. the most common problem is that there is not enough surface area for the number of fish.
about half a fish unless there fat then buy the a whole fish