Aquarium salt for Hospital Tank use.

Pimafix is an antifungal and you haven't indicated anything to suggest this is a external fungal issue. It's most likely an internal bacterial issue since the pop-eye symptom would suppor that.

I asked earlier if you know your GH (General Hardness) test results. Your higher pH of 7.8 leans towards harder water but it's not always the case.

The TC isn't going to be effective with your higher pH so you would have to first slowly lower the hardness and pH down to levels that the TC would be effective but that would be more work than just using plain salt and Melafix to treat the presumed issue... or if you definitely want to use an antibiotic, then you would need Furan II or comparable product that would work notwithstanding your higher pH and presumably higher hardness level.

Of course, if you have both Melafix and Pimafix, then using them as a cocktail makes it a stronger antibacterial than Melafix alone but I would still use the salt since it's cheap, easy and known to work for many fish health issues. It's not a preventative like some folks think when they dose their tanks all the time. Salt should only be used when and as needed.
 
I just noticed that you said he's not eating. This is the first time you've indicated this. This could indicate that he's either constipated or has the internal digestive tract infectioni or other internal issue. You could try using some garlic juice on his food to see if that will stimulate him into eating. Some green pea *meat* (pinch the pea and discard the skin), if he'll eat it will help relieve constipation, if that is what he has. Have you seen him pooping?

Go to my Sick Fish Questionnaire and please fill it out and post it here. That will give us a LOT more information from the start instead of having to play 50 questions.
 
I am so sorry, I thought I mentioned it in the initial post but could have left it out by accident.

I tried some veggie wafer soaked in seachem vitamin supplement, no luck. The intestinal issue was the other reason for wanting to remove the TC and clean up the water. My other option on food is ONutrition dried algae with garlic. I may try it but the labs haven't been excited about them.

About to eat and get to work on the tank, I'll check your site prior to a WC and adding carbopn to the filter.
 
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