I would go ahead with the maracyn I, and try the maracyn II if you aren't seeing results... You can overlap treatments with maracyn I and II, so you can begin the maracyn II dosage halfway through the maracyn I treatment if need be.
That said, I wouldn't use melafix with a beta, they are more sensitive to melafix than many other fish. The same company makes a formula for bettas (betafix I believe). I have never had much luck with melafix personally, but I have had good success with maracyn I and II.
Just remember to do the full course of antibiotic treatment and to do plenty of water changes.
Art
That said, I wouldn't use melafix with a beta, they are more sensitive to melafix than many other fish. The same company makes a formula for bettas (betafix I believe). I have never had much luck with melafix personally, but I have had good success with maracyn I and II.
Just remember to do the full course of antibiotic treatment and to do plenty of water changes.
Art