cant get my tent temp down

so i have a 5x5x7 Grow tent with a 100wt hps light and a 150wt ufo and now up intill a week ago i didnt really have any tempature problems intill i had to hook up my filter for smell and then i still didnt have any problems but now it getting alot warmer out side so my temp in my tent is up 85-90 dagrees and thats wayyy to hott now i have a cold air duct bring the outside air in to the tent witha a 4inch cold air duct fan i got on ebay made for that and i have a tower fan in the tent and i have my can fan and filter sucking air out of the tent and i still cant get the temp to go down like what should i do?

oops i ment to say a 1000wt hps and 150wt ufo

could be you dont have a large enough fan to compensate for the added resistance of using a filter.

you could also purchase a cooltube or air cooled hood

You need a good exhaust flow to pull down tent temp.

i have a cool tube vent on my Hood but my hood is big!! but i just think the light puts out so much heat that i have to buy another canfan with out the filter which sucks but hey if its what i need to do then be it i just have so much money in this now trying to look for a cheap way out of this situation so any other ideas would be awesome