Hi, all. I started trying to set up a small (5-gallon) NPT yesterday. I started with a bit over an inch of sifted, patted-down Miracle-Gro organic, then covered it with a bit over half an inch of Fluorite Dark sand. I let it sit overnight, and it was so muddy still that I changed the water. Then I changed the water back-to-back three times, and the water was still utterly muddy. I added another half-inch of sand at that point, thinking that maybe my cap wasn't deep enough, and I'm still having serious mud, despite two more water changes. Have I just mucked it up and need to start over, you think? I just hate sifting more dirt but would rather get started if I need to.