im not sure if this plant is on pace for an 400w hps light.i got a brand new bulb and see an big different i guess the bulb was faulty but anyway i think im having a deficiency maybe k im not sure though.its looks toxic so i flushed with 7 gallons of water some boiled some cold from the faucet but mixed though then i add maybe a close to half strength of fox farm big bloom,I'll see what happens,here some pic this grow thing isn't as easy as i read it to be and yes i spent way more money then i imagine but i know im not done yet either. i know one thing its fun