Emperor Anglefish Dying?

[George]

Originally Posted by menno

How can I quickly get it to start eating then? Or am I too late now...

And if I need to learn something new... How do I ensure this doesn't happen again and make sure that new fish take to eating mysis?

It's probably too late now.
There are a few things you can do differently next time:
1. Make sure the fish eats in the fish store and healthy.
2. If it's possible, ask the fish store to hold the fish for you if the fish is new arrival and not eating.
3. Consdier setting up a quanrintine tank. Not only it helps with treating of parasites, it also helps with training your fish to eat prepare foods and fattening it up to prepare for the bullying in the display tank.
Also it's ok to pass on the fish if it's not eating in the store. 99.9% of the fish you see in the fish store will show up again. No reason to rush and buy an unhealthy and not eating fish.