Fish dying

[90rr]

Hello
Guys I need help I’ve had a problem with GHA for about a month that I have Been brushing off that’s seems to be slowly getting better however last week I lost a copper banded butterfly and now tonight a black and white hen I tested the water and added pictures please help

 

[Crabs McJones]

Can you provide us with your stocking list? The fish in that first picture looks like he got severely picked on

 

[90rr]

Clown , blue tang ,yellow tang , 2 green chromos and a chocolate chip star fish , a few crabs and snails

 

[vetteguy53081]

How old is this tank? Heniocus shows severe aggression and I would look at chromis as possible bullies, and if not clown, especially if it is a maroon or sebae clown

I also would highly suggest to take a water sample to a trusted LFS and have them test to confirm and compare readings.
Also- what is your salinity and water temp?

 

[90rr]

1.25
77degrees
1 year old tank

 

[vetteguy53081]

1.25
77degrees
1 year old tank

Narrows down to possible aggression