week 8 flowering no red hairs and lacking trichomes,

hey guys im growing chrystal by nirvana and i'm using house and garden nutes in dwc each plant has its own 600w hps, i have big buds but trichs are lacking and i got no red hairs, this strain usually finishes week 8, i also used the top booster week 3, i'm not sure whats going on? any suggestions on what might be happening? have you ever heard of heat slowing the flowering process? i got a a/c put in two weeks ago temps before never went passed 85.
i aint got no pics right now, ill try and upload them later


thanks

but were your temps at night...or at lights out...

t was 85 at lights out and 75 lights on, its been hot here during the day,
i know thats backwards of what its supposed to be.