How long does it take, on average, for a fish to get used to a new tank?

[andresdeo]

In general of course, Im sure there will be diferentes between species. By getting used to, I refer to swimming around normally, start feeding, and any other you can think of.

 

[George9]

In general of course, Im sure there will be diferentes between species. By getting used to, I refer to swimming around normally, start feeding, and any other you can think of.

In my experiences, all my fish have started eating within 4 or 5 days depending on the species. Some will eat right away. New fish take a little time to get used to the tank. Like the new kid at school, they act very vulnerable usually until they get used to things. It may take a week or two for the fish to be comfortable in his new home.

 

[Bubble_B0y]

From experience, it depends on what fish you are adding
and what fish you currently have stocked in the aquarium (schooling peaceful tetras will help relax the new fish).

I have also found that tanks with lots of plants, decorations and hiding places - the NEW fish settles in really quickly.


But to answer your question, it takes a few days for the new fish to "fully" settle in.
I find feeding your tank helps coax the new fish. The new fish will see the other fishes eating and feel safer and more at ease.