I have not used "Quick Cure" nor do I have a bottle on hand to look at but I have a sneaking suspicion that it is a liquid form of copper. Copper is a very dangerous thing to use on any fish under any condition. I did not say it should never be used I just think that there are safer ways to kill ick than copper. Copper is affected greatly by your water chemistry and a dose that would be totally safe for the guy in Salt Lake City would kill the heck out of fish in Memphis. I can tell you what a copper over dose generally looks like. You will see fish that normally swim up in the water column sit on the bottom and act like a fat man that just ran up three flights of stairs (trouble breathing). At a slightly higher dose the fish may shudder or shake from time to time as you do from a sudden chill. This may happen very little or several times a minute. Also they may swim into things like they are drunk. If I remember right fish that are scaless are even more sensitive to copper. ( your eel ) If you are now thinking that copper is your problem here is what I would do. #1 Do not add stress to your pet, don`t handle him prod him or bug him, let him rest. #2 He has lost some of his ability to remove oxygen from the water so any thing you can do to raise the dissolved O in the tank will help. #3 Stop feeding him, when we feed fish they use more O in order to process the food given. This is why we do not feed fish for several days before shipping them. If your pet is tolerant of salt I think that a little would help. If it is a copper OD it may take several weeks for him to fully recover. The first 48 hours are going to be the most critical. Wish I could be of more help, best of luck.--HappyFish
