But she hasn't. I was going to ride him the other day but he is SO skinny, you can actually see his ribs!
You should be able to see most horse's ribs (maybe 2-3 ribs) but that is much different from being "ribby". Many horse owners abuse their horses horribly by overfeeding them to the point that they are obese.
I wish I knew who she bought him from because I would let them know what condition he is in.
That is not your concern nor is it their concern! If you sell an animal, it is no longer your property! If you sell your car, and the next owner decides to take it to the junkyard, It is not your responsiblilty, privelege, or right to complain. You can offer to purchase it, but it is not yours!
If the next owner of an animal you have sold neglects it, you are not involved, the law is involved. We have laws in this country for this. And you as a horse owner may chose who you sell animals to and you can choose to never do buisness with that individual again.
I also don't know how much a horse like this would require in hay per week...but something is better than nothing.
It is commendable that you feel charity in your heart toward this situation! If you wanted to provide hay for the owner to feed - Fine! But do not feed someone else's animal! That is a good way to get in all kinds of trouble! You are not intimately familiar with the details of this animal. You are not responsible for this animal. You don't know if it is "allergic to alfalfa". You don't even know how much hay to feed. Provide the hay if you want - Do not feed someone else's animal!
We sell hay - we like selling hay! But you have not provided enough details as to whether or not you have enough pasture to warrant the horses needing hay. Florida is not like Canada. Depending on where you are in FL, you may have grass growing 10-12 months of the year. And if you have ample pasture, you may not need any hay at all!