1000watt cool tube heat problems!

alright i am stumped, i have a 6x6x6 tent with a 1000w cool tube that is cooled by a 465cfm 6in inline fan. the way its set up is duct>tent>cool-tube>duct>tent>inline( 6in 465cfm)>ducted into the attic. this alone reaches temps of about 90 which is crazy. i also have a 6 inch booster fan(188cfm) blowing fresh air into the bottom of the tent and a 4inch inline fan exausting out of the tent into the attic. still the temps reach 87-88 with one fan inside the tent. i dont know what else to do at this point?? id really appreciate some help if anyone has any ideas or solutions.


thnks

forgot to mention, the temps in the room where the air is being pulled from stays at about 76degrees all day and the light is only on 12 hrs a day. im trying to reach tempts of preferably 76-78 but id be happy with 80

eh i wouldnt go with a 1000 unless you have AC, your gonna need room temps of like 65 id guess to keep it cool with fans. I had problems keepin my room cool with my 400 hps in summer.

i dropped the a/c from the roof vent in the room right into the tent and it really doesnt make much of a difference. only a degree or 2 i doint get it, it shouldnt be this hard to cool ive seen others who keep their 1000 6inches from their plants and run 75 degrees. i also thought of filling a cooler with dry ice every 4 days or so and have an intake fan sucking air from above the cooler. i know this could increase humidity but that an easy fix.