When maintaining the delightful snails, Potamopyrgus antipodarum, in captivity (say in the lab, prior to infecting them with all sorts of trematodes), we feed them a micro algae called spirulina.
You might have heard of it. It has become popular in super food drinks and smoothies. If you see a green smoothy, it likely has this little micro algae. Additionally, many people have touted to me the great health benefits, and the anti-oxidants.
But I resisted. Because spirulina is not people food. It’s snail food.
But now, algae might infiltrate our food supply on a more permanent basis. Read about it here!