I have been trying the dry wet thing and seem to get more from Dry than wet. To make sure I understand if I am skimming dry it takes the bubbles longer to reach the top of the skimate cup? wet is an instante flow to the top (with bubbles). Which way extracts more unwanted nutrients. My NO3 is at 2-5 ppm steady. Also I am using a ASM but how do you know which one I was sold. never saw the box it came in and the store I got it from was pretty shady.