what to watch for on my fish finder

[shocker037]

On my fish finder what are somethings I need to look for and that are some tips/tricks you guys have for me I have a lowrance 480 it is not in color. Also do you guys pay attention to your grayline/gray scale and if you do what do you set it at and what does it rally mean THANKS!!!

[Fishtaco]

Start here with Jerry Blake's tutorital on fish finders. This will explain greyscale and sensitivity, etc.

As far as tips and tricks go, I think the most important thing to remember is that sonar is just a tool, but its not an expert. When you see one fish near habitat on the sonar, there are probably more there. So fish it.