When I first got Mandala, for a few weeks he was the most boring fish I ever had. But now he is one of my favorites, just took him longer to come out of his shell.
Also, in another veiw point. I have had Stahl for about a month. He has a very 'blah' personality. He swims very slow and does not dance or make bubbles. He is also very easily stressed. He gets a stress stripe everytime I clean his tank. But that is just him. I put him in a 15 gal all to himself recently and he is swimming around a bit more.
But I have begun to love him for his uniqueness, he may be considered more boring than my others but it makes him stand out.
Sorry, that was really long. :)
Bettas - Giovanni (HM), Burly (HMPK Giant).