Sorry about not posting the specs for what I shot the pics in. I took 90% of them in aperture priority with an f-stop in the 5-7 range. I started with my ISO at 400, and then boosted it to 800 (you can tell which ones by the grain). I tried to snap a few in full manual as well with an ISO of 400, an f-stop of 5.6 and i just jacked up the exposure a bit. These seemed to come out fairly well, but as soon as I boosted the f-stop, I continued to run into the same problems. Unfortunately, I don't have many options for things to rest the camera against to steady it. There's a 12x39 watt tx fixture running accross the back half of the tank which can't be removed without taking off the entire canopy, so I can only remove the three LED fixtures from the front half of the tank. to be honest, when I try to rest the camera against something, the shots come out worse because it just feels so awkward with the way I designed the canopy. Once I get the boom-arm mount made, I'll post a thread in the DIY section as well as a few pics in here. Thanks for the suggestions!