Plant Shakes

Yes infact it is a good thing wind in nature is what strengthens the stems of the plant, makes them fatter and able to carry more nutrients. Actually if I were you I would let the fan blow directly between the light and the top of the plant as long as it wasn't strong enough to blow the plant over it can only do it good.

agreed its a very good thing... will strengthen up your stems nicely.... Me and my friends call it a rain dance.. haha.. cause the first time my dude saw it dance he thought it did that cause it needed more water...DUH... lol hes noob though so no worries..

you should leave the fan on the plant for a few weeks or so
till the stock gets nice n strong
you really only need stakes for outdoor plants