So I got onyx ( new betta) he's a half moon double tail. He's currently in a 1.5 gal thank with a Nana anubia and a Marino moss ball. The first day I got him he beg me for food as soon as I put him in his tank and gets happy to see any one come near his tank. When I got him he looked just black. Now I can see he's black with blue. Here's a picture of him tell me what you all think about him. By the way he blew his first bubble nest. I need to get him a heater.