Okay so i just got 3 new male Betta fish. One of them is a red and light blue veil tail. Anyway, this one won't eat.... AT ALL or MOVE! I need some advice. My other 2 eat and move. Can someone please tell me what the heck is going on with him. He's in a three tank divider with a blue plant that he loves to hide behind. There is no type of aeration. Could it be because it needs fresh air or a change of water. Note that i just got them 2 days ago so could that be possible? If you have any information can you please respond.