A Plasmodium diet consists of many types of algae. The main algae that Plasmoduim consume on a regular basis is the red algae, but it also enjoys green algae, blue algae, and yellow algae as well.
The horse is an herbivor, which means he only eats plant life, grasses mostly. If no grass is available they will need hay and some kind of grain to make sure they get all the nutrition they require....