Some folks told me to use 2 100Weq per plant
also, it is bad for the plant to get the fan directly as they said just to be able wiggle the leaves.
I see you got the same problem I had... it looks like the plant's leaves are bending, that could be overwatering or some pH problems.
also, it is not adviceble to transplant more than once or maybe twice =S
here are some pics of my failed attempt