Hey there. I recently upgraded my freshwater tank from a 30g to a 80g. I transferred the water and filled with fresh treated water. That was one week ago. Yesterday I purchased a eheim 2028 used from a local ad. I cleaned the filter and replaced the filter floss. Ever since there has been small white dust like particles floating around. My question - what are these particles and why does my filter not pick them up? Thanks in advance. I was using a fluval 206 on my 30g and it work great.