leave that fan in there. I think water is coming out of the leaves, because mine were doing the same thing. I think the plant is releasing extra water, but without a fan in there to circulate air the water isn't evaporating. Just a guess.

also, what nutes are you using? and in what concentration? What is your pH? Those first pics did look a bit sickly, make sure your pH is between 5.5-5.8