Heat stress ?

imo you should invest in an a/c. at least a window a/c unit. you want to keep the temps between 75-81 in the day time. 89 is too hot. that could be part of your problem. whats your humidity like? remember in the flowering stage you want reduced humidity (30-45% range is ideal). high humidity i believe can cause your buds to shrink as well as potentially mold.

I have to have an a/c unit where i live (temps are generally 100+ outside in the summer). if i didnt have an a/c i couldnt grow indoors and i run a few 600w lights on top of that so as you can imagine it gets pretty hot.

thanks for the tip about the humidity it was a bit high at 65% so put something in there that will hopefully help. Now the random heat wave has gone the temps rarely get above 85 just looked at her and it's about 78 in there. I think she's only got a few weeks left as most of the trichomes are milky so now just waiting for that 50/50 mix. Though she hasn't got a lot of trichomes on her must be because of the heat stress

I'm pretty sure it's an indica and indicas grow better in cooler temperatures.