<b>sfsuphysics</b> - :lol: about hating this forum.
Sometimes pictures don't look good on the camera's display but end up coming out pretty nicely on the computer screen later. However, it could be a white balance adjustment that can help.
In the case of the image you mentioned, I have a feeling that was a white LED moonlight, but I'm not 100% sure.
<b>goalieman92</b>, sometimes you can increase the ISO to capture active animals like shrimp. It is tough because you are in a low light situation and you need faster shutter speed. The faster the shutter, the less light you let in. Maybe it will pause briefly, or perhaps your camera has the option to make successive shots in a row. You might even try "bracketing" as that tends to take 3 shots in a row. One might be crisp enough to please you.
<b>Nathan</b>, I can't wait to see your images. (Btw, I need to email you about that custom sump you installed...)