I added flourite into my already running established tank on the 11th. I rinsed it as much as I could but it was still pretty sooty. I expect from now on whenever I plant or move things around I'll get dust clouds, I can deal with that. But now my tank just looks dirty. I've tested the water quality, everything is fine but it looks dirty I have to keep wiping in the glass from the inside which gets a film of ashy sooty residue. I added filter floss on the 13th and I've been changing that daily. And I've done a few 25% or more water changes. What else can I do? I just dropped a nice chunk of money on new plants and lighting and co2 boosters and now the tank looks unkept and dirty, especially under my upgraded light
Flourite is one of the dirtiest substrates, which is I tend to rinse it for an hour before I add it to a tank. One thing I do is I'll hook up extra filters to the tank to help clear the water, and I add polyester fiber fill to each filter to catch any tiny debris that passes through any filter pad.
You'd get more answers, and suggestions by posting a similar thread in in the substrate forum.