I'd do a second treatment and lift salt gradually to 3 tablespoons per 5 gallons. Give it one last shot
Thank you, Angellove78. I have read that Melafix and other "fixes" is not good for bettas because it damages the labyrinth organ. Prince is still the same. Today is the sixth dose of Furan2. Hoping I do not have to euthanize - told my husband last night if it comes to that he will have to do it as I will not be able to. Plan to use the icy water formula on this site if we have to - hope we do not.