I have a vortech MP 40, older style, not the quiet drive, has been used for less than 2 hours! I ended up buying the quiet drive instead. The pump runs quiet, but not quiet enough for my office. Will trade for zoas. I broke down my tank and upgraded, need some basics like fire and Ice, etc that I gave away with my old rock, and could use some harder to find too. Let me know what you've got, or will sell the MP outright, give me an offer. Thanks