I'm not new to reefing, but have been without a tank for 3 years. Have a new red sea 525. It's been years since I have cycled a tank. Currently using reef socks. Simplicity skimmer. Tank has been up for about 7 weeks. It's cloudy. Nitrate is down to 30 and salinity is 3. All else is normal. Have a pair of clowns. How do I get the water clear?