Ya I hadn’t used it yet since it’s still establishing bacteria but my phosphates are at .30 ppm so I need to get that down so might sift the sand bed with my water change and see what my numbers are and then add rowaphos if I still need to lower itWhatever works works!
Hopefully the skimmer performs well for you. The smaller ones are usually a bit more finicky.
I haven't vacuumed my sandbed ever, but people do. I mix it around vs vacuuming it. I have a single tiger conch and a few nassasrius snails motoring around as well