True clown one bottom fin could be rot

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noticed one of the bottom fin was kinda torn 2 days ago...then today is almost gone

if it is rot fin will it spread?

if I can net the fish out, is it better to cure in a separate tank or container?

what is the recommended medication for rot fin?

furan2?

which lfs has it?

thanks

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is melafix better or furan?

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after first dose of melafix at half the recommended dosage, the true clown manage to spread that fin being attacked and starts eating .. maybe its hungry after a few days

[finind]

melafix proven can cure fin rot for my true clown, fire and flame gobies