I'm brewing an american ale, with a recommended fermentation time of 5-7 days in the bucket, then 2 weeks in the bottles. i brewed it on sunday the 12th, and the air lock stopped bubbling on tuesday the 14th. i'm probably being paranoid but is something wrong? also what should my beer look like when i open the bucket, ive heard if its blue, yellow or red thats infected and shouldn't be bottled?