Hi All. Need advice. Have a 200L fluval roma. Tank has been running for about a month. Dry rock and coral sand. Used ATM colony and have a juvenile regal tang (will either rehome her or upgrade tank when time is right), juvenile coral beauty, 2 small clownys and a small blue cheek goby. Have 5 turbo snails, 6 nassarius snails and a blue legged hermit crab. Here’s my problem. I wake up in the morning and the tank is super cloudy. It then clears up during the day but some time between 5am and 10am it goes cloudy again. I added a fluval u2 in the tank which I thought was working but the cloudiness comes right back when I get up. Ammonia is 0, Nitrites 0 and Nitrates 5.

