>>343887Fucking truth.
If given warm enough waters and more space, happy fish is happy. I've seen really beautiful bettas given 5 gallon tanks at the local fish store. They arn't really active swimmers by nature though.
If you want an ADHD swim-tastic fish, get some danios.
>>343753OP, no fish survives on blood.
Many MANY fish are carnivores besides the over-hyped piranha. Just feed them betta food.
You could buy live (frozen) bloodworms, and your betta would probably love you for it. You'll notice he'll be more active and colorful if given these on occasion.