daveo_irl
Fish Crazy
If there was something wrong with my tank my puffer would stop eating so there is nothing wrong with my tank it was the fish so I am not going to have another hawkfish because of this reason and also if there was somthing wrong my anemone would die my corals would die and my fish would starve guess it's just one of those things sigh
Not necessarily, especially as you said the hawkfish was eating fine and was healthy in the LFS for 2 months. That leads me to think it was the move to your tank that caused the death. Whether that was stress, water conditions (your other stock could be just used to it, but the new arrival could have been shocked), or disease needs to be discovered to prevent repeats.
Why don't you test the various tank water parameters and see what you get? It would be the first thing I do if I lost any livestock. Then, if parameters are normal you can rule that out and move onto other possible causes such as stress, disease etc.