Before I wreck any more props, I'm going to get some kind of depth sounder on my new family runabout. I don't plan on taking it fishing too often, but may get it out once or twice a year to do some Sturgeon fishing. For the most part I'll be running around the rivers of the Pacific NW with my family on intertubes. <br /><br />I'm debating spending a little extra money to get a fish finder vs. one of those cheaper little round depth sounders. Are there any advantages for one vs. another for general boating? Like can a fish finder look ahead of a boat that is moving and tell me if the water is only 5 feet deep 20 feet in front of me if I'm just going like 5 MPH? Or are both depth sounders and fish finders pretty similar in finding depth and the fish finder just adds fish to the equation? Any suggestions?<br /><br />Thanks.
