I am currently on day 6 of cycling, just registered Nitrites. For a while there has been this think white layer of stuff on my shrimp (which is in pantyhose right now in the tank). This is probably just some decaying matter but since it is getting sucked up by my filter intake would it be safe to do a 90-95% water change when I am done with the cycle? Also, would it be okay to rinse out the filter itself, not the cartridge after I am done cycling so I could clean out any plant, or weird white stuff derbies? Or would this ruin the cycled tank?
Could I also wipe off the sides with a paper towel during the water change to make them look a little nicer? I'm just concerned about the beneficially bacteria and don't want to destroy that.