. Do you think that bettas are supposed to be together? Well I hope you seperate them soon before they tear eachother to peices. There's a reason behind there name "Siamese Fighter Fish" because sadly they fight with each other. That tank would have to be bigger. But if you dont have money to buy more tanks you can try to use household things like a tupperware, but remember to make sure they have enough room. Try a tupperware that holds 1gallon of water. Please read the posted FAQ on top of the forum
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Did you guys see that betta leaning sideways on the bottom and those other ones just sitting in the corners of the tank? You should remove them immediatly they look so sad.
I can't believe the pet store let you do that! I guess it must have been a wal mart or something. If that cup I saw in the side of the pic was the cups they came in you should put 3 of them back in there cups with ONLY one in each cup until you get more tanks.