pitching a fit because I was awake and he was still in his crate. So, I didn't quite hear. I need to call and ask them to send me a copy of the test results.

That's the thing. Just because he has crystals, doesn't mean he will ever get blocked or have bladder stones. Yet, if I choose to skip the vet recommendation and not put him on the special food, and he does have blockage or stones...

He was already being transitioned from puppy to adult food, at the vet's directions.

I had wondered if just going with the Purina food would be enough. I also wondered if there was anything more natural. And yes, as much water as he will drink, was part of the directions.