Fresh water fish

[Carey]

Yes, though most are introduced (including many aquarium fish let loose and some introduced game fish) there are some endemic & native fresh water fish that include the o'opu, the Freshwater gobies that spend their larval time in the ocean, and the Hawaiian flagtail & alamo'o

Fishbase is one of my favorite search engines, the link for their list of freshwater fish in Hawaii is:
http://www.fishbase.org/Country/CountryC..._code=840B&vhabitat=fresh&csub_code=