I just turned down my lighting from 260W to 130W. How long should I keep it on? I used to have it on for 8Hr when it was at 260W. Maybe I can keep up w/ my plants demand by reducing the light. Im doing the EI method. Just started dosing 1/4tsp KNO3 recently & 1/8 KH2PO4 & K2SO4. Thanks in advance to any replies.