I got a betta from petsmart a week ago. He is quite active and often pecks at the leaves and gravel in my tank. There are some tiny flea-like critters that dashes around my tank, as well as a few other unidentified tiny organisms. I’m not sure if this betta is feeding himself off of these organisms, but he never pays attention when I feed him fish food (tried Aqueon betta food, tubifex worms, and tropical flakes so far). I tried pushing the food to him with a toothpick, but he’d just wander off. Since the betta is from petsmart, I doubt he was spoiled on frozen bloodworms and such. So is he just not hungry?