That rings is just from the krauzen. IMHO, if there's no medicinal smell then you're fine. It would be hard for any wild yeast strain to compete with the yeast you pitched, particularly since you said it was pretty active.
[/I] Up Next - Hobgoblin
After That - Czech Pilsner
Primary - Humboldt Hop Rod (4/24)
Primary - NOT Wheat AG SNCA (5/5)
Conditioning - SNCA Clone (3/3),