Cat seems to like his new pal...
(preferably with tarter sauce...I'm sure)
If you ever get the chance to give your betta live food, give it a try. You will be amazed at how much he loves it. Bettas, more than most fish, really excel on live food. Pet stores sell brine shrimp. I give mine mosquito larvae/wrigglers. You should see him stalk, attack & devour his prey. He puts on quite a show.