So I purchased a Melanurus Wrasse two days ago and put it into QT, I am currently treating it for internal parasites/worms due to stringy white feces and the food is mixed to @Humblefish specifications using general cure. Today as I'm observing the fish I noticed its fin was damaged as well as having a white, idk what to call it, on its fin (see pic). Is this healing or is it an infection of some sort. If its an infection what do I treat it with that will be effective while also putting the fish through least amounts of stress?
Tank parameters are as follows:
Ammonia - 0
Nitrite - 0
Nitrate - approx 20 ppm and since did a water change and waiting a bit before I test again
Lastly there are no other white areas or any signs of disease or damage I can see, the spots are on the glass from what I can tell. If I remember correctly its tankmates at the store were was a type of butterfly fish (not copperband) and a boxfish/puffer (small) of some sort, I just remember it being roundish. The employee also mentioned it was a new arrival so damage could have been from before. Fish is swimming, not darting, but not "lethargic" either, eating fine, only goes in the sand bowl when lights are out so doesn't seem frightened. Hangs pretty exclusively at the bottom 15% of the tank (this could be du to new surroundings or the fin).
Tank parameters are as follows:
Ammonia - 0
Nitrite - 0
Nitrate - approx 20 ppm and since did a water change and waiting a bit before I test again
Lastly there are no other white areas or any signs of disease or damage I can see, the spots are on the glass from what I can tell. If I remember correctly its tankmates at the store were was a type of butterfly fish (not copperband) and a boxfish/puffer (small) of some sort, I just remember it being roundish. The employee also mentioned it was a new arrival so damage could have been from before. Fish is swimming, not darting, but not "lethargic" either, eating fine, only goes in the sand bowl when lights are out so doesn't seem frightened. Hangs pretty exclusively at the bottom 15% of the tank (this could be du to new surroundings or the fin).