Yeah I agree 1000w for a 4x4 space is plenty. I use a light mover but my room is 4x12 with one 600w. I love my mover i have almost double the plant count with it, but i've noticed my buds dont quite harden up like I like them, compared to if I was just blasting them with a static light. :bigjoint:
That stuff works great. No you do not dilute it just spray it on, but you are to far into flower to do this you have to start treating them with CS a week or two before you start flowering:bigjoint: