Fish tank troubles

[SharkBait48]

Hey guys, I have been having some bad luck...

So it all started with my wrasse jumping into my overflow and diss ting him self he died

Then my foxface started acting strange and is pacing back and forth constantly

Next my hawkfish croaked and I'm not sure why

My anemone is also pacing the tank


I have left city for school and my family is looking after it but I come home every two weeks to do maintenance, they do the easy stuff