This past week I have found 2 fleas on Rowdy and BF found a tick on Capone. It wasn't attached yet thankfully. This is the 1st tick either of them have had. They are currently on Sentinel which I liked and haven't had a problem with. I was planning on switching to Trifexis when we finished the Sentinel. I liked that it killed that adult fleas and not just the eggs. I need some suggestions on what other people use and like on their dogs for heartworm and flea/tick.