Tank and sump turnover rate

[Myka]

Usually, water being less clear has more to do with too much flow than too little. I think you're fine anywhere in the 3-8x turnover. You're on the low end, but I doubt that's what's causing the water problem. Is the problem particulates in the water, microbubbles in the water, or color in the water? For particulates, I would also suggest you add a filter sock. You don't have to have it going all the time. I just add it for 12 hours after doing my weekly water change. Zeovit's Coral Snow I find is also really good at clearing up particulates from the water when used regularly. Carbon is good for color in the water, and you have to look at plumbing for microbubbles.