Legacy187, I use the 6 inch fan HTG sells on their site for 25 bucks and I have the same 250 watter from HTG as you.. My fan exhausts through an HTG 6 inch carbon filter (have a can filter on bigger tent) and my temps stay at 75 in there even with no aircooled hood or intake fan. I have an intake fan all set up but havent had to turn it on cause its perfect temp. i dont know how I keep it so cool, I guess having it set up in the basement helps. I notice the 250 raises my temps by 15 degress.. basemnt is a contsant 60 degrees. So, i guess thats why, cause I have it in the coolest room of my house. Sorry i cant help you more. Sandmonkey, I am super stoked for the Blue Moonshine also! I have the Ed rosenthall Big Book of Buds volume 1 & 2 and Ive been looking at that Blue Moonshine in that book for a few years and wanting to grow it so I cant wait! plus, a cool guy on here by the name of Raiderman grew some out and said it was like the best herb out of his previous 30 grows I think he said so Im psyched! Also got in my seed vault, Exile, Warlock, Nebula, Big Bang, Nightshade, and a fresh unopened pack of Blue Moonshine (got 2 fem 5 packs of the BM)for the future! Future is looking bright! Gonna throw the Exile in the bigger tent as soon as Mikado is finished which shouldnt be too much longer. Mikado is a beautiful gorgeous plant to grow btw although it smells rather offensive compared to the floral scents of white widow and the pungent lemon scent of the sensi stars. Out of my 4 sensi stars btw, 2 came out very similar an dthe other 2 were completely different. Weird huh? so, would it be correct to say that I had 3 different phenotypes? I am still learning terms and whatnot but 3 were very different, two that looked just like all the pics you see of sensi star and the other two, one was more orange with a hawaiian fruitpunch smell, and the other one was totally purple! Whatever, they are all megadank... just surprised by the ammount of variety in one pack of seeds.... anyway... peace guys, good luck with everything and one love