Hi guys, I'm brewing a Cooper's I.P.A. which was slow to start fermenting....now it appears it has stopped after what appeared to be a normal process once it did get started. The thing is, on my hydrometer the black line is still a little above the surface but there appears to be no activity. It's day 8 so I'm temped to bottle but the thing hasn't moved in almost 24 hours...What should I do?