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So I was getting some supplies for my goldfish tank, and I just couldn't resist the urge to bring a betta home with me. I used to have one, and I loved him to death! He lived for about three years, and I'm hoping this one will too. I am hoping to get him into my 10 gal tank when I can afford to get a bigger tank for the goldfish, so unfortunatly he's only in a 2.5 gal tank now, but its coverd, lit to keep it about 76, and has a good filter on it. I noticed that the very ends of his pectoral fins are turning white, its like he's loosing some of his color, and I'm not really sure why. Does anyone have any input on why this may be happening? I know that his tank is a bit small, but I am in the habit of doing water changes every 4 days or so with that size tank, so I hope its not the water conditions. Any advice would be appreciated!