Problems with my baby hash plants

ok last night was a night of changes

FINALY got around to doing some ph testing. Even though I was stuck using one of those cheap testers with the little green pills . I did each test 3 times though and averaged the result, just because Ive heard these testers arent the greatest.

Anyways,
Water is @ about 6.8 - 7.0 But then when i tested the run off , it was around 6.0

It allso came out looking pretty brown ? the water runoff that is.

So anyways I flushed them all last night and managed to get a run off of about 6.2 .

I didnt add ANY nutes though yet , should I add nutrients direclt after the flush, or wait and let the plants relax a bit till next watering to add 1/2 strenght Nutes ?

As well , I finally put a thermometer / hydrometer with the plants, I know I know should have done that WAY sooner. So the temp was over 90. So obviously I had the plants way to close to the lights , and not enough moving air.

So I rose the light , lowered the plants and have the temp now about 80. So thats better, but im going to need a few more small fans I think to move the air better.

So thats where Im at. Could adding thenutes raise the soil PH even more to get it nearer 6.8 ish ?

THANKS !
__________________