@icbh707 - I've been using airstones the whole time but the ones I'm using kinda suck I think to be honest but I did buy a pump for a 50 gallon aquarium and connected two airstones to it and run it 24/7.

I see you saying your using alot of CalMag...do you use RO water or just tap, and if your using tap, what is your ppm on your tap? Mine is 300ppm at 0.5 or 500, however you wanna say it. I want to use RO water, and I will be in the fall, I just don't have the money to afford one right now and I don't plan on growing throughout the whole summer, this will be my last attempt before the fall. I think its a good decision because I'm already having heat problems and its only going to get worse.

The sediment issue, I wish I would have had the forsight to have taken a picture at the time, but it was looking really dirty in the reservoir after only two weeks which really has me worried. I haven't used any hydrogen peroxide yet after draining the reservoir and cleaning it yesterday which I think could have been a contributing factor but at the same time I kinda wanna use it to kill any bacteria that may grow in there.

80 degree's F. My humidity is ~40% 24/7.

When you asked about the picture with the toothpic, I guess I don't know what "PM" is. The white stuff? If that is what your talking about I've always just assumed it was a calcium type buildup from the nutes but now I'm not so sure. I'm afraid it may even be a mold because I saw some hairy-looking white spot on a peice of hydroton yesterday. If you know anything about that please fill me in. Those hydroton peices on top are not directly touched by water so I was kind of curious why that buildup was occuring on them. Also in the past I get a kind of algae/fishy almost smell from my reservoir at the end of two weeks when I clean it....which is why I kind of feel the need to use the H202.

Lastly, I'll see about getting you a picture of the top of the tent but...bottom intake fan near the base of the tent, exhaust fan at the top of the tent, 8 ballast T5 lighting, and a large box fan mounted to the top of the tent in a corner and pointed slighty down that runs 24/7. I also have the exhaust and intake fans running 24/7. Non of my fans are directly pointed at any of the plants.