algae that grows in salt water

- in the algae farm we should raise it out of the ground so there is more surface area that can catch the sunlight

- use wave action to push seawater up higher than sea level

- is there algae that can grow in salt water?  perhaps we can use kelp which grows extremely fast

- can we make use of deep water organisms that live and thrive near geothermal vents? 

- can they be used to clean up unwanted chemicals at high temperatures (solar thermal waters)?