a morish idol sliced open

I have had this Morish Idol for a couple of months now. Anyway, my powder blue has become more and more aggressive toward the idol. So, i don't know if the Idol was cut by the powder blue or chased off by the tang and severly scraped. Anyway, i am putting the divider in the tank to separate the two fish for the meantime. But, what do i do about a fish with a deep cut to his side like this? Let it heal, and cross the fingers that it doesn't become infected? Or is there something else i person can do?

I have also thought about pulling the powder blue out, selling or trading him off, and finding another smaller one. The Idol is not agressive to anything, except food.

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Thanks

 

It seems like there is something new that pops up when you least expect it.............

 

Well, not to bad.... for having a GASH in him! /DesktopModules/ActiveForums/themes/_default//emoticons/wink.gif The breathing rate has slowed from when it occurred. I did put the divider in....but it has not been an effective tool the way i have it installed (it is 2" too short- where the pump stream across the top water). This divider has worked for me in the past.. but the fish are too accustomed to their invironment. I am still undecided how/what to do with the tang....let alone catch him. If i decide to catch the tang... bearsareawesome will know first.