My mom went and bought me one tiger barb and two green tiger barbs. The only tank I have is the one gallon I asked about before. How long will they survive in this tank? It's snowing here and may be a day or two before I can get to the fish store. Another thing, my tiger barb is chasing and trying to nip the green tiger barbs. Is this because he's a male and the others are females or what? (I don't know how to tell their sex.) But the tiger barb is smaller than the other two. :huh: Could someone please help!