Thanks jonclark96. I think I have FINALLY decided to do what you did. Make sense. I just don't feel good about moving my fish, because I don't have room or another tank to keep fish in while I make the changes. So, I will build the two canisters this weekend. Set em up and run them for two weeks. Checking ph, ammonia levels, etc. When this has gotten going good, then I will begin to remove gravel(not water) and my big rocks/caves until I get most of it all out. Then do a BIG water change as I remove the under gravel plates (and that muck underneath) This time (two weeks) will give me a chance to work on my "other" project of building a new stand, that will be able to house my sump that I want to put in. (Store bought stand doors too narrow to place sump underneath) I was wondering would this be a good time to also change stands and place the sump in as well? My tank will be the lightest in weight(during the 80% water change) it has been in a year or so! Would changing the stand, putting in the sand and the sump all in one whop be too much or good timing? PLEASE feel free to jump in folks and help me . My "LOVE" for this stuff OFTEN gets in the way of my "MAKING GOOD SENSE"!! So, give me your thoughts ASAP, because I'm headed to the store this weekend (tonight and in the morning) to begin my work. Wanna know your thoughts before I spend $$. I'm retired educator, who has more time than $$!!..LOL Waiting on replies, and be honest, I don't take it personal. Thanks