re: How much would you spend on your pet?

I adopted a mountain cur from the shelter. Even though they were giving him heartworm prevention and I gave him simparica trio from the time I got him, I wanna say 2 or 3 months after he came up heartworm positive. The vet said he probably had them while stray and it takes up to 6 months to show positive. That ain't on the shelter, it's on the person who had him prior. They won't pay for anything