The baby brine shrimp are so tiny, I don’t think my betta even sees them! I’ve been feeding them Hikari Bio-Gold for bettas, and he has been eating it happily, but I thought I’d provide a variety of different foods in his diet, so I hatched my own brine shrimp (San Francisco Bay brand) and fed them to him … They are like little specks (and yes, they’ve hatched. They are SWIMMING). The betta does not even seem aware that they are food!