I bought an eheim 2217 filter for my 46g bow front. Originally I had a whisper hob and my water was crystal clear but the filter was really noisy. I switched to an eheim 2217 and it is almost silent but my water is now filled with dust like particles with larger ones here and there. I'm really disappointed with this filter especially since it's said to filter over 100 g tanks. Am I missing something? I do have my old filter materials in the canaster to seed, can this be the problem? Just wish I had clear water again...