Some more information if it helps
-temp-72-78
-water with nutes every other watering. water about 1000 ml to each 2 gal pot every 4-5 days
-600w hps
-5x5 rooom
-oscillating fan. (did not have fan intake for fresh air. I did just put one in about 20 minutes ago in hopes it will help)
-I don't know the humidity but the box is in a basement so the air is relatively dry down there.
You only water 2 gallon pots with 1,000 ml of water every 4-5 days? The length of time sounds good. But 1,000 ml is not much water. that is just a little more then is in a fifth of whiskey. When I water, I water them to where they get a good soaking, and plenty of water runs out the bottom, flushing out all the old and used up crap and replaceuing it all with fresh Nutrients while sucking in fresh oxygen.
Edit: Also, do not get all wrapped up in what the breeder says will be harvest time. These time frames are usually way shorter then reality. And this will be even longer if starting from seeds. try taking your plants about 20% longer till you have 20-30% amber trichs. If you harvest early. You will miss when the buds really swell up fast. I have seen buds double in weight in the final 2 weeks before. But if you cut to early, you will miss this phase.