less chance of a lot of illness or parasites also less stressed , only down side is tank raised fish usually don't have that vibrant coloring as wild caught , but it's not to noticeable unless you have 1of each side by side .
you do need to be aware the blue hippo needs a large tank as they get rather large
The best place to see tank size recommendations is live aquara , this way you know what fish will work in your tank , just thought I put that out there as I don't know how big your tank is.
I made that very mistake back when I first started I had a 37g tank and put in a grouper
not paying no mind how big they get , 6 months later he was almost 8 inch in size . it was not fun trying to catch him as I had a lot of rock and he kept hiding , finally caught him and traded him in at a local reef shop .
I learned my lesson after that now if I'm not sure how big they get I research it , another thing to be sure of is how fast some fish grow to others, some grow super fast and others grow at slower rate .