I think I had a bit of the white cloudy thing when I first set up my tank. Its some sort of bacterial bloom that hits tanks that are a little out of whack.
It pops up around here every now and again and seems to be very common in new tanks. Not a part of the cycle but so common that I've seen folks associate the two.
And it seems to generally go away by itself. Usually in a week or two.
But you're a new poster without test kits and you're asking about something that seems to be most common during the startup phase. Just made me wonder if the tank was cycled yet.
The fishload seems to me at a glance to be about full, maybe a little heavy. Haven't gotten out the calculator or anything and I probably wouldn't have commented on it… except for the concern that maybe you're still cycling. Which is easier and safer to do with slow incremental additions rather than a full house right of the bat. (Easiest and safest to do a fishless cycle, but thats another bit).
Getting the Cycle underway typically takes 4 to 8 weeks. It varies. You may see a lot of fish deaths during this period. Or not. That also varies a bit. The ammonia, nitrite, and nitrate test kits would help you to monitor it. Problems associated with cycling are more acute when the pH is higher, so that'd help guide you in the remedies you might make.
And the basic remedy is lots of water changes, probably for a few weeks (prbably most of December, maybe into January, depending). Until things work themselves out.
Unless its just a bloom and you're already cycled.
In which case its probably harmless and you shouldn't worry too much. Just a little bit. Take a look at your parameters and your water change regimen, feeding and what not. Somethings gotten a little out of whack. Better to sort it out early.
HTH
(Hope That Helps

)
edit: plug for Fishless Cycling