Oh I know Ricardo, just pointing out that it's a very fixable problem when you get backscatter. When going through your pictures, for anyone reading this and learning, don't toss them just because they have speckles and what appears to be dust all in the water. Learn some basic post processing and remove this, simple fix! What you want to be grading your photo on, and picking it out of the group for is the lighting on the fish. Everything around it can usually be removed/fixed/edited to look normal.