What is the temp outside of the tent?
Where are you venting your hot air too?
Is your bulb bare?
You have the correct fans to cool your room, but it sounds to me that your venting (or vent/ducting) set up is not right. If you are pulling air out of the tent then that is basically sucking air into the tent through the vents, however, if the air going out of the tent is hot, and the air coming into the tent is hot, you are just circulating hot air and all day long making it hotter and hotter. If this is the case you will get mold/pm, etc.
Good luck bru, hope you get it sorted. (remember not to mix hot and cold air! then you will be right!)
peace, DST