Tank Clouding Up But Only At Night Time?

[Jaag]

I have noticed that at night time my tank is looking cloudy and during the day not so much. Has anyone had this happen? The tank has been running for about 2 weeks. It has 3 rbta, a clown, a midas blenny, a pygmy possum wrasse, 3 heads of frogspawn and a few pieces of gsp a homie gave me. I was dosing seed for the first 7 days to get a faster cycle. I used dry live rock and used sand. I am running some carbon that isn't very fresh as I am out. This is in a 20 gallon nuvo with a hydra 26 running on it for about 9 hours a day.
Please let me know what you think
I just ordered some chemipure blue. I have ran that in the past on other reef tanks and loved it.
Thank you and Happy Holidays
Ill get some pics soon.

 

[NowGlazeIT]

Are your lights the same all day or do you notice it more under different color lighting?

 

[Kamden Uelton]

Could be plankton coming out to reproduce or maybe snails are mass producing, everyday, only at NIGHT (which shouldn't be possible)

 

[Jaag]

Are your lights the same all day or do you notice it more under different color lighting?

They're the same up until 8 o clock ish then start to ramp down

 

[NowGlazeIT]

They're the same up until 8 o clock ish then start to ramp down

Okay I was wondering because sometimes I see water quality more clear in different lighting

 

[Jaag]

This is the tank this morning at 830 ish.
I'll try to get some later tonight.