Hi Mary
Firstly, if you could, upon your next posting, could you not use all capitols? Its a little irritating to read..... thanks
Well, there are several things you can do for him to help expedite the healing process. But first, I believe you are going to need to use a much larger bin to make this work. I suggest that you use a rubbermaid-type storage bin In the realm of 50 gallons. This bin will still need to have large daily waterchanges but a little different approach will be used:
Use your filter from the twenty gallon on the 50 gallon bin but DO NOT let it cycle in any way. It will need very regular scrubbing/rinsings to keep it from doing so. Remove any carbon that may be in the cartridges. Take some gravel-vac bags or media-bags and fill them with ammo-chips (zeolite). Place the bags of zeolite in every available area in the filter. You can even leave them sitting on the bottom fo the bin. This will effectivly remove any ammonia that can buid-up between daily waterchanges. Test morning and night for ammonia to be sure.
Keeping the water quality perfect is sometimes enough for the fish to heal itself. But, they often need a little boost before this can happen. I suggest doing the following for treatment:
Hydrogen peroxide swabbing of the wound for several days. Swab the sore very well for the first one or two swabbings. Avoid the gills and eyeballs. You might need to use a towel, to make holding the fish steady, easier....
If you can get the fish to eat, feed a medicated food such as medi-koi, from
http://www.pondrx.com/store/customer/home.php?cat=3Other than that, a slight salt solution of 0.1% doesn't hurt.
Melafix is ok to use at this point but if it doesn't reap you any results within 3 days, I suggest that you try a waterborne antibiotic such as a furan based drug OR a sulfa based drug OR maracyn 1 and 2.
Then, theres always the best route to go for fish that are off their food, an injection of anamycin or baytril that would be available through a vet.
I hope this helps some. post back soon.
Paul