I posted about 12 hours ago about my hippo tang who was acting fine but had some major discoloration on her mouth/fins/body and was told to dose kanaplex and raise my salinity by 0.001 (1.023 to 1.024) for it to work as best as possible I bought this fish from saltwaterfish and got her for $19 which seemed weird, I noticed it immediately in the bag but it was not nearly as bad as it was when she died just looked like her top fin bones had no flesh around them and were exposed so I added her to my observation tank and wake up and it was a very weird thing I’ve never seen on a fish before. My water parameters when I added her were 0 ammonia 10 nitrates salinity was 1.024 and phosphates were a zero I am also running a uv sterilizer on the tank and she was acclimated to temp for about 30 minutes but they shipped her in the same salinity my tank was at so I added a few half cups over that 30 minute period to adjust ph etc and then added her , she was there less than 24 hours so I’m just wondering what this is if I need to treat my other fish with it and if I need to use something besides kanaplex to do so. I also freshwater dipped the body to see if flukes fell out fresh water dipped it for 10 or so minutes and nothing came off except some white flakey material think more like fish flake than fluke. Could be a fluke thought I’m not to sure about them have never dealt with them until possibly now. Forgot to add she gasped for air a lot almost like she had velvet but that was the only sign of velvet no flashing scratching swimming in flow etc she swam like normal but her breathing was almost two times faster than normal