New Betta bought 12 days ago Very active Loves scenery Water is properly heated cleaned and filtered Tried 5 different types of food plus bloodworms Always remove uneaten food Why won't Betta eat?

Bettas sometimes do this for a while. Try feeding him 3 or 4 pellets for a while and don't remove them. He may figure out he can eat them after a few minutes or so. When he starts eating try feeding him what the company recomends. If you have any more questions ask me on my messege bord. Hope this helps!!!!