I tried to de-glare i'm using a Canon powershot G9 - very good camera but in the situation with the tank lights on and even the ISO at 400 i need a shutter of around 1/30 to actually have decent light - and obviously that would show the fish all blurred. Also I don't have an off camera flash. I should invest in one as i can hotsync one on this camera and aim the flash from above into the water...