Very lethargic betta - please help!

[harrypotter]

He is always swimming around now, I have only seen him at the bottom a few times and it looks like he is sleeping. He is eating once more, gobbles everything up and is flaring plenty. He seems back to his old self.

[BETTACHKALOVE]

Nice,congrads!!!! So you just used Prime and stress coat. What kind/brand of the stress coat did you use?

[harrypotter]

I bought the stuff from API and it's worked wonders!

[Aven]

Cycle hadnt been working most likely because it takes around 2 days to activate, and/or just doesnt work though i have had pretty good results with it. I would say that 1 100% water change in an unfiltered 2 gallon is too infrequent? Iwould suggest a 50% and 100% weekly but investing in a 5 gallon with a filter doing 25% water changes every week should be ok. Im not an expert by any means, but this is just what i picked up from my research. Im glad to hear he got better! :)