What is happening to my tank?!

[Taylor37]

So for a nano tank ive never had a problem in my 20 with water change water temp being different. Ive had a bad batch of salt do that before but my fish also suffered as a result. Could also be that the salt didnt mix well and you had a precipitation event.

I think your right, the salt didn't mix well, it's the only thing that makes any sense. It's still foggy today too which makes it 2 days now

 

[Taylor37]

Figured out what the problem was after 2 corals died. The protein skimmer was leaking out containments back into the water and the sponge red rea provided caused a massive amount of microbubbles. Fixed everything and water is clearing up, skimmer is working well pulling out the junk in the water and my corals are opening back up!