Feeding the hay only is fine. She dosent have to grain them. Infact not many horses ni my barn get grains. The one guy I know dosent feed anyhting toher then hay to his 15 horses.

When you call the Spca you can leave your name as annominous so she wont know or ever find out.

Riding them dosent mean they arent neglected. A pen where they cant run is not nice.