Is it possible to get 1 Betta with my set up, which is below in my signature oh, by the way i will be giving 2 of my male swordtails to my sister and i will be getting 1 more mollie?
the red tail shark may nip it's long flowing fins. Do you have a bit of salt in the water for the mollies, if not then you should be ok, just keep an eye on the red tail shark.