How long do I leave him in?

[bittersweet]

Last night I after I put my sick betta in a hospital tank and added methyl-blue ( I know thats not the right spelling) stuff in as well as some bettafix. my question is how long should I keep him in there? because he can not eat while hes in there (and hasnt for almost 4 days) because the water is so dark. thanks

 

[Tempestuousfury]

The bettafix should be fine in itself... I'm not sure how the other chemicals work, though, but I do know it's to prevent fungus (used on eggs).

I'd say remove the meth if you're not totally sure how to use it. bettafix should work, and you should also add salt to boost osmoregulation and therefore their immunity.