I agree with Msjinkzd. I'd observe for a while before medicating. Keep an eye on them. If you are really worried, you could dose with Melafix and Pimafix as they are both fairly gentle.
As an aside about clove oil, it is really painless (it's a natural anesthetic afterall), and you do not have to do anything but overdose with it. I have a puffer fish, so I know about using clove oil simply as a sedative (with the goal of trimming the teeth and then recovering). For that use, we mix 3 drops of clove oil with 3 cups of tank water. Any more than that can cause brain damage or death. I would say that you could easily use a cup or so of tank water (just enought to cover the fish) and 6 or more drops of clove oil. That would give about 6 times the dose (should be 1 drop per 1 cup) needed for sedation, so there should be no question that's an overdose. Leave them in there for at least 5 minutes. Then the fish should be really and truly dead. No pain, no worries. If you are unsure, put in a few more drops. Clove oil is pretty easy to come by and, I believe, cheaper and easier to come by than euthasol.
As an aside about clove oil, it is really painless (it's a natural anesthetic afterall), and you do not have to do anything but overdose with it. I have a puffer fish, so I know about using clove oil simply as a sedative (with the goal of trimming the teeth and then recovering). For that use, we mix 3 drops of clove oil with 3 cups of tank water. Any more than that can cause brain damage or death. I would say that you could easily use a cup or so of tank water (just enought to cover the fish) and 6 or more drops of clove oil. That would give about 6 times the dose (should be 1 drop per 1 cup) needed for sedation, so there should be no question that's an overdose. Leave them in there for at least 5 minutes. Then the fish should be really and truly dead. No pain, no worries. If you are unsure, put in a few more drops. Clove oil is pretty easy to come by and, I believe, cheaper and easier to come by than euthasol.