My bettas acting weird.

[iJessie]

So I got a new 10 gallon tank set up.
And there's 3 males with dividers.
One male is acting very strange and this has happened before.
I put him in his new tank, and now he will stay at the top of the tank.
He's lost colour and if I even come close to the tank he darts around ...
The other 2 bettas are swimming peacefully.
Last time this happened I put him In his old tank and everything went back to normal?

[bettabetter]

well i am no expert, but are the dividers see through? if so, the sight of other fish can really stress out a betta and cause them to loose colors. if the dividers are not see through, it is probably just the stress of moving into a new home. for some bettas this can be a really stressful time, so maybe just give him some space, and i would check everyday to see how he is, and then in about a week he should have adjusted to his new home :)
if he is still acting strange, it may be something more serious, that i'm not really to sure about.

[soady]

I figure the same as bettabetter since all others are fine. This can only be due to bettas having different attitudes and stress tolerance. Try to make only his divider non see through and see what happens. Hope he gets well!

[callistra]

How did you acclimate your betta to the new water?

How do you do water changes?

More info would help, including how long he's been in the 10g: http://www.bettafish.com/showthread.php?t=49233