survivability

Would like to know which one is more hardy and easier to keep. Have heard cooperbands don’t survive because they refuse to eat. Got a long nose butterfly as well from Petco and it died within a few days of quarantine. What are your thoughts??

I acquired this space invader from someone. Any chance this can bounce back? If so what are some steps to help?

Recently had swung by my lfs and noticed that slightly larger sized Wrasses and Tangs are priced higher than their smaller counterparts. I left really thinking about it since I’ve never really thought about fish size when making a purchase unless I am stocking a smaller tank etc. So my fellow...