Originally Posted by phoenixs4r
I would take a gravity sample before doing anything.
+1 to This
You might be surprised, in addition, at what temperature did you pitch and how well did you aerate the wort? Aeration is paramount during the initial phase of fermentation.
If you do need to re-pitch and are using liquid yeast then you need to get in the habit of making starters for your beer, it's easy to do and the best thing you can do to improve your product