I very glad Krypto is doing so well. He sounds like a very smart dog and quick learner.
Charlie is still on Heartguard and having no side effects. The vet talked me into trying a new heartworm preventative. Boy was that a mistake.
I hope he keeps growing and developing into the best dog ever.
Candle is lit that he continues doing so well.
Love All Life, Thank You For Posting! :)