What I originally thought might have been some kind of cotton mouth/bacteria/fungal infection is starting to look different. While I was peering at one of my new babies earlier today, I'm pretty sure he's missing a chunk of his lip. I'm not sure how this happened (as I'm not sure how the bettas are kept before they're put into individual cups), but he had it when I got him.
He seems to be healthy and enjoying his new, spacious environment. He's exploring his 1 gallon vase and swimming around, as opposed to when I first got him and he was moping around on the bottom. He's also responding well to feeding cues already and is curious about my finger when I put it to the glass.
I have some Melafix that I bought when I got him and the other fish I bought (since Wal*Mart keeps them in terrible conditions), and the bottle says to use it daily for a week and then to do a 25% water change. However, he's only kept in a 1 gallon container, which I've read I should change every other day. So, I'm conflicted on what kind of care to give him. Suggestions?