Marine Fish And Freshwater In Same Tank?

[phishyphil]

I know that balloon mollies can gradualy adapt to saltwater conditions, and now i have a general wondering what other species are like this. I find it fascinating

 

[seffieuk]

I know that balloon mollies can gradualy adapt to saltwater conditions, and now i have a general wondering what other species are like this. I find it fascinating

There are several species that are born in fresh water and migrate to brackish or marine when they are older. Or are you thinking about fish that move between these two enviroments all the time?

 

[ProjectMayhem]

I know that balloon mollies can gradualy adapt to saltwater conditions, and now i have a general wondering what other species are like this. I find it fascinating

Best place to look would be fish common in river estuaries as they would have to live in both fresh and salt water environments.

 

[N0body Of The Goat]

Empire Gudgeon, a great alternative to cichlids in a rainbowfish tank, need hard fresh water as adults but the fry must be in brakish/marine conditions.

I think I recall "nmonks" writing about how Kribs and Golden Wonder Killifish can adapt to brakish, in a thread last year.

Some keepers of Persian Killifish like to keep them in a (low end?) brakish setup.

 

[ProjectMayhem]

Here is a document of fish samples in a tropical estuary in Brazil. Page 3 lists the species found.

http/ird.academia.edu/LuisTitodeMorais/Papers/186763/The_abundance_of_larval_and_juvenile_fish_in_a_tropical_estuary

The water changes seasonally in the rainy season being very fresh and salty when this ends so I imagine all the fish on that list can cope in both environments and survive rapid changes.

 

[StandbySetting]

Guppy's can be kept in marine conditions, but they wouldn't really be suitable tank mates for most marine fish.