The Puffer Forum

Our baby gsp has torn his little fin! D: I know they say that time will heal it but he won't eat cause of it. They are supposed to be immune to nearly all antibacterials. Is melefix one of them? If it is can anybody recommend something to help his fin heal faster? Please help, he has eaten in two days!

Please answer the questions in red. Torn fin sounds more like an infection that could be due to water chemistry over an injury.
This is the first time I've heard immunity to antibiotics. They are sensitive to many medications, but not ever have I heard immune.

Yes, Melafix is what you want to use to heal a torn fins & Pimafix, if it looks to be growing a secondary infection, which looks like fungus. It would help for us to know your answers to those Qs.

Puffers are not immune to antibiotics. Frankly, the statement that they are is absurd and meaningless.

There is just as much bad information on the web and especially in chain stores as good. In practice there is likely several times as much invalid info out there as good stuff.