Who would have thought that salts were complicated? Brine shrimp like it super salty, more than seawater, some algae do too! This salt mixture takes lessons learned emulating the Great Salt Lake and combines them with cutting edge algae culturing technology.
Yes- the salt takes time to dissolve and there may be precipitation of a white material (calcium) in the bottom of the container. That is needed and expected.
Yes- you will need to add algae culture nutrients to the salts to get the algae to grow.
Cysts? Yes or No. You pick which product you want.
Yes- singing to your cultures will make them happy. If nothing else, it will make people think you are cool.