what would cause this, see the blood spots on its face?

i lost my 2 sunburst anthias, i had them 6 days they came to me looking healthy, one hid the whole time the other came out of the rocks a bit... anyway i could not get them to eat. i tried it all.. live brine , live pods, frozen cyclopeze ,mysis shrimp, plankton. you name it i have it. woke this morning to one out of the rocks dead. and the other dieing. the dead one i discarded. and the dieing one i pulled from the tank and placed in a small container of water, so the shrimps and other things wouldnt get to eat any of it.
my tank has
0 ammonia
0 nitrates
0 nitrites
ph 8.2
salt 124-125

i drip acclimated these fish for almost 3 hours

my tank is pretty stable i have ATO system and probes all to keep an eye on whats going on in it.

but what is this what could have caused this? oh all the fish that were in the tank before adding them seem fine....im lost.

i took a picture of both sides after the one i pulled died

 

Those anthias are hard to get to eat initially. They must have been sick before you brought them home if you only had them for 6 days or something g14 classified is happening to your tank you don't know about.

 

it almost looks like it was beat up. but i have all peaceful fish in my tank. and they never messed with the anthias. i was just wondering if the blood spots where a sign of something wrong. the acclimation was longer than normal because when they arrived the saltwater in the bag read 119