well, i met some very picky, bad eaters in my betta time.
what's your betta like with food? how do you feed it?
and when do you feed what? special treats etc?
my routine is fairly time consuming and it also means no one else can feed them lol
at weekends i feed in the morning, during te week when i have college ill feed them around 5pm.
monday is fast day... i hate having college on monday and usually get up too late and then do something fun afterwards...
draco eats only brine shrimp and bloodworms in jelly (whoever invented that was an idiot!)... it pollutes the water quickly though, so i hold the lil tube with the food over the surface and let him bite bits off. he wont eat anything else, so thats pretty much his only food...
salmon only takes flakes (daphnia)... he's still to shy to eat like draco and my pellets sink too fast for him realise its food. the flakes float forever and he takes them whenever he feels like it... its the easiest way of feeding though. he will take blood worms in very small bits when they are right infront of him... maybe in time he'll eat from hand... he's VERY shy
ghost will take flakes (daphnia) and bloodworms and brine shrimp. same as draco, from the surface. he munches it down nicely. not a picky eater like salmon.
the girls get something different every day! they eat everything and are tame so will eat from hand. they are well behaved too and will let each other eat

i drop in some extra pellets to sink for the cory's after the girls are full.
after feeding i leave them digest for a few hours... usually let them flare for an hour then.