Injured Beta?

Question

On Saturday I brought a new Beta, and other than a little bit of stress about the move, he seemed fine.

BUT! Today I noticed that his right pectoral fin wasn’t moving. His left on is fine… but his right one doesn’t move at all.
Then when I went in just before, he was laying on the bottom of the tank on a rather alarming lean. When I turned the room’s light on, he did a rather enthusiastic lap of the tank, and the started happily drifting around the tank.

What can I do to help him?

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Tank info:
15 Litre tank (10 when gravels in place)
Heated to 24-25 deg C
Treated with Sure Start (http://www.aquahobby.com.au/prod113.htm)
One potted plant
One Beta

I’m feeding him “Beta Bite” pellets, which he’ll eat rather unenthusiastically.
I tried feeding him freeze-dried bloodworms, but he won’t touch them.

Answer 1

No one cause really jumps out at me over this. he most obvious answer of course is that he managed to damage the fin slightly and is being careful about moving it. As to the eating, that can easily be just an adjustment to new food. Most shops feed all the fish the same food, just a general flake, so it may tke him some time to get used to the betta bite pellets. Some bettas don't eat freeze dried foods very well. He may never like those at all but may really take to frozen worms. I woudl suggest you try frozen next time around and see if he doesn't take to that much better

Give him a few more days or perhaps a week and see if he doesn't start moving that fin again, my first thought is that he will.

MM

Answer 2

what can you do
well
put in something to heal his fins if you think one is hurt or sore
umm pellets arnt that good for his first few days
you can use them sure
he WILL eat them if he starves himself of course
but i would try something alive
like brown worms or live blood worms

-Ivan