Fish in space, a great article about fish research and viability of fish in space.

The seabass eggs, all 200 of them, were settled in their module and ready to go. The ground crew had counted the eggs carefully, checked each for an embryo, and sealed them tightly within a curved dish filled precisely to the brim with seawater.
The countdown, and then—ignition! For two full minutes, the precious eggs suffered a riotous shaking as the rocket’s engines exploded to life, followed by another eight minutes of heightened juddering as they ascended to the heavens.

Link to story:  Could Astronauts Rear Fish on the Moon? | Innovation | Smithsonian Magazine