ACK LTA in powerhead

[Llamarama]

Oh my goodness what a rough run of luck i've had. today when I turned on the lights to my newly set up 95G tank the nem was on the back wall, ten minutes later when I came back to check on the tank it looked cloudy and my nem was sucked into a powerhead tried pulling it out to no avail after turning everythign off, so i let the PH rest on the bottom of the tank for a bit while I added carbon and did a 15g water change (that's all the R/O I had made) Starry Blenny #2 died first, I saved my dwarf lionfish, Rabbitfish, and Green Spot Puffer to a bucket but not sure if they will make it. Filefish, engineer goby, and pink spot goby are MIA. clowns who love their nem are swimming around in the tank apparantly just fine and happy. corals all look fine. not sure what is happening doing water changes as soon as i have enough water again. Nem should be fine its still got its color and it's mouth and foot appear to be okay. any advice for what i can do for my fish would be appreciated...i'm assuming the MIA fish are dead and I will have to take apart my rockwork to get them out

since upgrading my tank I have had nothign but horrible luck