Nice thinking, kwhilborn, I knew you catch the value of the idea.Please Register or Log in to view the hidden image! I'd also like to point out that there are several fast-growing varieties, like Chlorella that are especially high in protein. And there are others that produce substantial amounts of oil - and it's simple to extract. And pay no attention to the village idiot, there are several effective ways of increasing the growth rate - despite what he says. The most obvious, of course, is aeration.