I have a friend whose Bristle Nose Pleco killed a couple of his African Dwarf Frogs but, it didn't eat them. One of my frogs disappeared and I suspect it got out of the tank somehow. I'd check the floor. Unfortunately, they only live about 20 minutes out of water. Hope he turns up and was just hiding.Bought an Inspector Pleco yesterday, and I come home today and one of the two Dwarf Frogs that I had is missing. . . The two frogs were doing just fine with my other fish. The crazy thing about it though is the Pleco isn't even all that big yet.