So no where in my manual dooest it say how big a fish ahs to be to be a certian blip on the screen. Most fishfinders have a small medium and large sized blip for fish. I want to know how small is a small blip and how big does it have to be to be a medium blip. and how big does amedium fish have to be to become a big blip. can't seem to find anything about what tha actually sizes are. best thing so fare is small fish show at as small bilps medium fish so up as medium blips and big fish show up as big blips. wow thats really informative thanks guys for telling me how my equipment works.