Thanks Jay will do. No lionfish was gone when I got home last night. Other fish seem ok(fingers crossed) though. So do you think the lionfish had flukes and then got like a second bacterial infection ? These guys(lionfish) went down pretty fast(less than a week) eating fine one day and then the next day clamped fins and not eating and dies a couple of days later.Correct, one dose is not enough, it doesn't kill the fluke eggs. Fine to leave the nitrate pads, just remove carbon, and run your skimmer, but do not collect any skimmate. Adding extra aeration to the tank is best. Eight days after the first dose, do a 25% water change and dose it again. I find that a third dose after another eight days is often required.
Is the lionfish still alive this morning?
Jay