From what I have read on this not all tank raised will eat frozen, they have a better chance since the breeder can start them off from the beginning on frozen. The main benefit I have heard that you get from tank raised is a lower chance of bid eases and parasites. However, there can be a difference between tank raised and tank bread, if you can find tank bread then go with that. They are more hardy and will be more accustomed to frozen, they will also be healthier as they haven't been exposed to the diseases that occur in nature.
I don't have any but have done some research since I would like to try some day. In salt water I would say go tank bread whenever possible, they are more hardy and it preserves our nature.