I have never had a pony either, but we got one a few months ago, and all I can say is, they are fun, but they can get FAT easily. I have a grazing muzzle for my pony, and I think you only need a vitamin and grass/hay. If you turn your pony out in the day, I would suggest the grazing muzzle if you have lush pasture with a lot of grass - ponies have slow metabolisms as they were adapted to harsh climate and had to walk and walk to find food all the time (I looked up a little pony history), so you have to watch out on a pony that just hangs in the pasture eating grass. You would be SURPRISED at how much a pony can eat! Also, it depends a lot on what is in your pastures, too. We have some clover here, so she always gets the muzzle, even at night! We use the Best Friend Deluxe Have a Heart muzzle and she likes it, takes it fine, and is comfortable - no rubbing or sores or anything! If you are going to turn your pony out 24/7, I would strongly suggest one. Grand Meadows Grand Vite is great and very complete. Smart Pak is good, too. I would also suggest getting a weight tape and checking your pony to see how your program is going and make adjustments if necessary.