I am really surprised that they are producing as well as they are! The trich production is owerwhelming. I have reason to believe that humidity played a part in the vigorous flowering. I have a cooler in the room with my nutes and pump along with a bubble stone.The lid stays propped open. The water being in the grow area has taken the humidity to a level that they must LOVE! All this is just an opinion,though.... They just seem to do better,when there is some moisture in the air. I'll get some pics up when the lamps come on... Seems as if the more light your using,the greater the humidity.The circulation of the fan,helps to evenly distribute the moisture around the plants.Not the exhaust. That plays a part as well,but in a different way. It expels the humidity and seems to keep things on an even keel.