not quite true bro ... if the fish is still young, the chance to heal perfectly is big ... and even its not heal well you do next 'cosmetic surgery' til it heals perfectly ... well the odd drops when fish get older though but still you can surgery til it heals wellTransmore is better than clove oil, since there's a risk of clove oil clogging the fish gill. With clove oil, you need to hold the fish at a strong air stone once surgery is done to flush out the oil, or it may clog the gill, result in fatal. Btw, the fin won't grow back normal. There will be a kink/scar at where you cut it.