Help My Injured Oto Cat

[IMCL85]

Hey guys, I recently bought 3xoto for my 20g due to algae issue. The tank contain 10 rummy nose tetra. But how ever soon I discovered one of the oto I bought got this wound in the middle of its body. Arrg it sux that my quantine tank is treating some other fish from parasite. My tank statue is follow:

PH=8
Amonia=0
Nitrate/nitrite is at a safe lvl

weekly water change of 25-40%.

Here is a picture I took, you can clearly see the wound in the middle of its body:


http/img522.imageshack.us/img522/917/cimg3468.jpg


Any suggestion is welcome, I been thinking if he's gonna be alrite if I just leave him. Since I notice oto dont take medication very well, nor salt.

 

[glolite]

He should be ok with melafix as this is a natural treatment containing tea tree oil. Other than that, just do more frequent water changes, say twice a week, until the wound has healed.