i have read of synslipum, black belts, convicts and some tilapia species venturing into salt water. i also have an older book that says Mayan cichlids spread throughout CA along the coasts (this includes spawnign in salt water).
i have raised a few types of fry in brine water as well (my FRT tank is pretty salty). trimacs, motas, convicts, red devilswithout problems.
i have raised a few types of fry in brine water as well (my FRT tank is pretty salty). trimacs, motas, convicts, red devilswithout problems.