Hi guys, sort of a newbie reefer here and had one of my clownfish die today. Setup a nano reef about two weeks ago dry rock scape, seeded with live sand, and aquavitro seed(claims you can stock the day of, just need to follow a 7 day dosing period) . Picked up 2 baby clowns for the cycle period. Last night when I got home from work I noticed one of the clowns was starting to lose color near his top fins, nervous and without much medication experience I did a 10% water change and left the lights off. The fish made it through the night, but when I came home from work I found it dead. Not sure how long he was floating for as I was gone 9 hours, I’m confused because the other clown seems to be doing fine. Water parameters are stable