Gill Passman wrote:

Has he always been this way or is it a recent change? If he has been
like this since you got him and is otherwise healthy and feeding then it
might be just him - although it would certainly be a good idea to keep
an eye on the water quality as you say he perks up with the change -
what about temp? Do you match the new water or allow it to heat up?
Maybe the water is too warm...

I try to match the temps reasonably well when I change water. He was at
78F, but the tank I moved him to is 74F and his behavior hasn't changed.

If it is a recent change then it sounds a little how my Betta Bob became
before he died I'm afraid....he went from active to less and less so -
it was like he was aging before my eyes...

He's never been particularly active. Seems like he swam a bit more when
I got him, but his fins weren't as long. I've never seen him flare, and
he's never been much on bubblenesting.

Only one other thing...it looks like you feed a high protein diet from
what you list. Do you ever feed him flake or veggie matter such as peas?
Maybe he is constipated - certainly makes people drowsy...

I thought bettas were carnivores and needed a high protein diet. There
are algae and soft-leaved plants in his tank if he wants them. He's not
bloated and it seems like he'd be dead by now if he were constipated.

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