wilthering kandy kush plant in flowering please help

My temps are about 80 humidity around 40-50 Im running two 1000 hps lights and my plants are c02 enriched. I dont understand why the leaves are sagging and dying off. Im growing in Coco with added perlite. The plant is in a 4 gallon pot. Im feeding Canna Coco, Rhizotonic, Cannzym, Carboload, Snow Storm, Liquid karma and Big up powder.UI [h m,y water to 6.0. It seems this happened after my last feeding. The soil is still moist like I just watered it and its been like 4 days since i watered. Can somebody help. Im in week 6 of flowering.

Coco is always going to feel moist. It won't ever dry off completely, and when it does that means your plants gonna be dead too. With coco and perlite try to water at least 4cups of water a day(for a 4gallon), but you can put up to 8cups. Since its hydro your gonna have alot of runoff, I sometimes like to fill my runofftry about halfway and leave it like a hempy bucket. Probably 1-2cups in the runofftray. Then after the runoff tray is dry Ill feed it sometime that day, depending on what Im doing. Also, judge the plant the leaves will look nice a pointy instead of an overwatered droop(then water when they spring back up).

Are they drooping or wilting? Post some pics.

Since you diddn't get back to me, maybe you'll read this later.
I usually like to wait 6-24hours to rewater the coco starting from the point where the is no water in the runoff tray. Sometimes ill lift the pot and there will still be water dripping out. Cocos a pretty good medium bro, happy growing.