So my betta and three pygmy corydoras recently switched from gravel to sand, which I gathered was better for cories (I really wanted Flourite but too many people seemed to think it was too sharp for cories). So far everyone is doing fine, though I’m not seeing any of the burrowing behavior they supposedly like sand for. There’s just one problem: suddenly my betta Cyril has decided to obsessively attack their Hikari sinking wafers. He seems to spit most of it out, but I think he’d still be eating some which might lead to him overeating. Even worse than that, he accidentally gets sand in his mouth almost every time. I am sure he’s swallowed sand already and I’m just very distressed. I specifically got wafers instead of pellets because I didn’t want anything he could chomp in one go on its way down, and he used to ignore the food once it hit the bottom. He gets his own Hikari right size pellets (3-4 at a time) twice a day and a mealworm in the afternoon. Should I just let him attack their food, or should I switch them to something else, and if so, any ideas?