Cloudy water during nitrogen cycle

[dark waters]

Hello I have a 300 gallon tank fish only..... all of my reading are good but NITRATES were at 80ppm and after a water change went to 20 ppm... I did a 30 percent water change listening to someone and I think I made my process longer. I did a fish cycle. The one fish , three hermit crabs, and one shrimp are fine but my tank is milky white. I forgot to mention that My protein skimmer sucked up a rock and then my tank really got cloudy....furthermore I had on lights. My tank has already cycle though ammonia and NITRITES....they are at 0 ppm.... I CAN NOT ADD ANYMORE LIVE ROCK BECAUSE IT WILL CRACK MY TANK ...I have 100 lbs of rock in the display and 50 lbs in the sump... I USE LIGHT WEIGHT MARINE PURE MEDIA BLOCKS....each one filters 300 gallons.....Please give me advice. Should I leave it alone and it will clear up on its own or do I need to take action? Thanks in advance.....

 

[dbl]

It's been several days, has the water cleared up?

 

[dark waters]

https://www.reef2reef.com/threads/cloudy-water-during-cycle.234040/

 

[jetmaker]

Uv steralizer

 

[dark waters]

Thanks guys but the if look at the link the tank cleared up the next day....I have a picture of it...IT IS IMPORTANT NOT TO PANIC WHEN SOMETHING CHANGES IN THE TANK...that is what I'm learning... A UV or may not effect some of the good bateria...things are balanced I'm not looking to change anything on a whim... if I knew how to delete this post I would because I already got the perfect advice... and that was let it run its course