I'm glad I am not the only one with the problem
Like Tony I alwasy see tanks with cyctal clear water and then I look at mine and get ****ed off.
I do have a filter sock on my skimmer and my drain line into the sump. I also have a small filter bag on the intake to my pump as a final catch for ay bubles from the sump so I was pretty confident that the sump wasn't causing me the trouble.
I am tempted to get rid of my sleeper but he does such a good job of keeping my sand white.