Thank you all! As for my gelding, he suffers a laminitis yearly because of the rate of hoof growth, he foundered as a 3yo, and recovered really well, but was left to pasture because my grandfather said he was ruined. And it's almost impossible to find someone who will come and trim him, because of his fear of men, and there aren't any female farriers in the area. His hooves grow out of control, and break and split, i do the best i can to keep him comfortable when this happens. And i don't have the skills or the knowledge about hoof trimming. PP i think would be a great idea for him, it would help him immensely with his hooves.
As for the mares with heaves, i was told by a few people to leave them to pasture for 6-12 months, but they are already at pasture year round. Then i was told to feed them corn with corn husk for the same amount of time, i don't know if this is true. The mares got heaves/this breathing condition from getting nasty moldy round bales (i had no control of what they were fed, they aren't mine, but i would still like to help) I would go out and take all the moldy and no good parts of the round bales off, but it think the whole bale was no good. It has gotten better since spring has come, and they aren't fed round bales any more (i flipped out, it was beginning to effect my horses too). PP would be great for them in a way, but since i don't own the mares their owners are going to have to learn how to motivate movement, and use good quality hay, they raise cattle and think that horses can eat the same quality hay. I'm the main care taker for these horses, but the quality hay they owners buy is less than desired. *my horses are fed separately*