He is gorgeous! I read your story of Tian Tian. I have Malcolm. I got him from a friend who left town. Malcolm lived in a nice bowl, but he was not an active fish. My daughter "took care" of him....sorta. During one waater change, he jumped and when my daughter grabbed him, she tore most of his pretty tail off! He survived, but he was not real pretty or happy. His tail started to grow back, but slowly.
Acouple of weeks ago, my sister gave me her old 5 gallon tank with everything. I cleaned it up and got it to cycle and put Malcolm in it. I was worried that the filter current would upset him, so I watched him. To my surprise, he came alive!! He explored the whole tank and actually PLAYED in the bubbles and the current! He flares at his reflection and "struts" his stuff when he sees us near his tank.
Now his tail is growing back much faster! His color has brightened and he is a very active and happy fish. I put 3 platies in the tank with him, and at first he bullyed them...3 days later they swim together peacefully.
So, to all those who say that Bettas are "just fine" in a little bowl....you are full of it. Bettas are much happier in tanks or large CLEAN bowls. I love this site!