plants drooping bad a few hours before lights out first soilless

OK its my first soilless grow sunshine advanced#4 amended with dolomite lime 1000w mh 2ft frm top of plants 4*4*7 tent air cooled Hood temps 75-80 days 65-68 nights nutes pbp grow lq karma superthrive nute ph 6.3 run off 6.4 18/6 but my first bale of ss#4 advanced I guess was old no lime the p.h was off for about 2 weeks high 5 runoff before I report in fresh ss4 with lime but now I get a heavy droop and light green leaves ain't the end of a light period Ill post pics

lights 2 foot from top of plants at 1000 watts mabey too close, not enough water usually has something to do with the droop, as well as depleated o2 in tent at end of day. My guess is its just too much for a 3.5 x3.5 tent get rid of the tent and put mylar emergency blankets up to expand to 10x10 x whatever your ceiling is. Packing too many watts into a small tent doesn't make bigger better smoke, it makes drooping, stressed plants. My guess is you would be better off with 250 or possibly a well vented 400 still,,, 400 may be too much.

first few he's of lights on

rights when lights. On

Thks mel I have 3 separate they dnt droop under 24 HR light but floro t12 I'll get sum pic b4 lights out and Ill test ur light thoughts by moving them up slowly