I admit I'm still getting used to my Elite-4 HDI sonar settings, but I can't seen to dial out this clutter. There is probably some thin mossy kind of stuff but not a lot. And even if it is, who needs their screen cluttered up with it? I have turned the settings to High for both Surface Clarity and Noise Reduction. I tried turning off Auto Sensitivity and cranking it down to like 60% but still got the clutter. What else can I do? This much clutter can obscure actual fish.