I would imagine the Prazipro would internally clean out a fish to a certain extent since saltwater fish do drink, I just don't know how far down the gut it gets before the animals body breaks it down. That's one of the reasons Hypo is so hard on the fish it's drinking near freshwater and that hoses the liver and kidneys.
Back in the day we used metronidazole, Clout, Fluke Tabs, formalin, etc. to clean infested fish out, before Prazipro was all the rage, most seemed to work real well, although the fish I see now come in far less healthy than when I was dealing with them in quantity. I was always a big fan of formalin, real easy to dose and the only thing to worry about were DO levels, Jim Hall (my mentor) used Fluke Tabs and metronidazole most often.
Gresham, if you like chalk bass you'd have snatched these guys up in a heartbeat, I kid you not they have enough meat on them I'm sure you could make 4 nice pieces of nigiri with the mini fillets
