I listened to the lfs. My first Betta (I got from walmart) was in a 1 gal typical "goldfish bowl". I was told I didn't need a filter or heater (even though it was the middle of winter), I did buy a thermometer though (which showed 78 degrees for water, my house had always been warm), along with the betta fix, betta food, and all the other things to make tap water safe, and even some bloodworms. I waited before putting the betta in the bowl, floating him and all that. He was a beautiful red veiltail, the most vibrant I'd ever seen. Anyway, a day or so after I got him I went to my boyfriend's for the weekend (I was in highschool, so it was more so sleeping in different rooms, lol.), and my brother said he would take care of my fish (he had a betta too, so he knew what he was doing). I would call home to check on my fish, making sure he had been fed, and I was always told everything was fine. I got home that weekend (a whole two days later, imagine!) to find a white rotted dead fish with no fins and half decayed. I'm assuming he got fin rot or something, but ever since then I've never had a red betta! (with the acception of stardust, my current female, but she's more white with pink and red...
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