I Got a betta fish for Christmas, along with a 0.9 gallon tank. I put my fish in that tank, and he lived there for 3 weeks until I discovered that Berta's need larger, warmer homes. I immediately went out and bought a 5.5 gallon tank with a heater and filter, and as soon as it was cycled I moved my little pal in. Unfortunately he began to freak out. And he broke out in stress lines. What can I do to help him?