Torch not doing so well?

[Kgrizzle]

I have pictures of my torch from 2 weeks ago and now... He's been alot smaller since I stopped feeding cyclopeeze and started feeding with Marie snow and mysis... My ph is 8.0 ni 0 na0 am0 sal1.026... Not sure of my calcium levels but would this be causing that?

The heads that are dead were already dying when I was given them...was given all my coral from the person I got my rock from cause he was moving and couldn't bring them