Just got a brand-new, male Betta in my 5.5 gal, cycled tank. He's been exploring and hiding, which seems normal. When and how should I feed him? My previous Betta was accustomed to hand-feeding, so he was easy. This one, not so much; he doesn't even seem interested in the food. Can they smell the food when you put it in? How do fish know to come to the surface to get food? BTW, I feed with the Hikari Bio-Gold. Edited to add: The tank is heated to 82 degrees, and has a filter (soda bottle baffle) and a small air stone. The test today showed Ammonia, NO2 at 0ppm, and NO3 at less than 5ppm. I usually give defrosted bloodworms every 4 or 5 days as a treat.