Originally Posted by DarkMoon17
Right, that is a VERY bad case of fin rot. You need to get on those 100% daily water changes with salt asap or he could develop body rot and die. Add the stress coat at the higher dosage. It wouldn't hurt to up the salt concentration to 1 tblsp/gal either...
Is it OK to add the salt all at once, or when starting treatment should you add it in gradually? (new fish, when he started swimming yesterday, clearly has beginning fin rot ....).
OP, how is your fish doing?