I don't, but they get very large. 125g is probably not big enough as quoted on the site. If the tank is large enough, they are beautiful fish. How large is your tank?
I wouldn't consider them the most hardy fish. A lot of times they need a live feed source in the beginning. They do get large, and if I am not mistaken, like to be kept in numbers.
These fish have very specific requirement to help keep them healthy. Needless to say, most choose NOT to keep them that way. Its a shame. Come in, and we can discuss it.
They need big big tanks! Otherwise they will not feed properly and once they do, they will eat everything they can. They get huge too. I have seen them in the fish case at the grocery store as well. A big food fish in their natural range.