Sorry I should have included that in the original post. I am using pro mode with 100% blues (2 Kessil 160s) at 35% power each. 1/90 shutter, F2.4, 320 ISO. These are RAW images edited in Lightroom to color correct them. Shots are taken from outside the tank, but these frags are angled towards the glass in the sand bed. If shooting from outside the tank, make sure glass + lens are super clean and the camera lens is at close to 90 degree angles relative to the glass (shooting through the glass at an angle causes distortion/blurriness).