BBS maybe..Mm more plants?
So as of not I have three different types of plants on my tank ar mini, Monte Carlo, and flame moss. I see some black dusting on my ar mini's I see some black dusting on a spongbob pineapple ornament. My filter is is blue new but right now looks black. My bio filter is starting to have a dark brownish color to it where I can easily wipe with my fingers. I do have a couple more plants coming in this weekend but do I have a bad case of BBS? I think that's what it's called? Any suggestions or measures I can move forward with?