nutes with system?

http://www.stealthhydroponics.com/product.php?xProd=2&xSec=54

i ordered this system. andi was wondering if i needed to order any other nutes. orif it comes with everything i need

Basically it does and you do want the drain kit I just emptied mine and I have the drain kit and it was 123. I don't even wanna think about emptying without one.

i often do you drain it?

weekly for now in veg and as needed when flowering