2007-09-20 23:05:47 · 5 answers · asked by Fish Man! 6 in Pets ➔ Fish
Salmon go from
fresh when born to
sea water during maturity then back to
fresh to spawn.
2007-09-20 23:13:53 · answer #1 · answered by keith j 4 · 2⤊ 0⤋
I know that figure eight puffer fish are salt water fish that you can gradually change the water into fresh water and it wont die. There are some other kinds of puffer fish that allow that too.
2007-09-21 06:28:43 · answer #2 · answered by yellow04ducky 3 · 0⤊ 0⤋
I think probably some tropical catfish. They live in estuary and tidal flats and lagoons. Lots of change all the time.
There are also sharks that migrate up river to feed and return to the ocean.
And Salmon, but they kind of have a one way trip.
Tho there are Rainbow Trout, Steelhead, that migrate up river to breed and return to the ocean.
2007-09-21 06:19:27 · answer #3 · answered by bahbdorje 6 · 0⤊ 0⤋
Bull shark, most likely.
2007-09-21 11:21:56 · answer #4 · answered by TopPotts 7 · 0⤊ 0⤋
A Dead Fish.... :)
2007-09-21 06:15:55 · answer #5 · answered by rose 2 · 0⤊ 0⤋