Ornate not eating!! Or very picky..

Hi guys, I'm keeping a 9inch ornate in a 4ft tank. She doesn't seem to be interested in e feeder catfish or shrimp that I buy for her, and hardly touches e pellets either. When she was in her prev 2ft tank she would come out from hiding and gobble on e pellets but now she juz lies there quite indifferently. What could be wrong? She's eaten feeder catfish before, they got her to her current size. I tried feeder goldfish too but nth happened. Could she juz be lazy to hunt, and instead prefers eating pellets (maybe she DOES eat, but we dun get to see it)?

1 thing though, she did eat a tiger barb which I added e day before. I guess this shows she still has an appetite after all.. But why is she so picky with her food? Pls help me with this guys, thanks.. If there are any threads u can direct me to pls do so yea all comments welcome =)

Thanks everyone!

Hey tyl089, wad are night crawlers? I'm from Singapore nv reali heard of them..

Ooh ok thx guys.. Giving mabel some time to settle down cos I transferred her to her present tank rather quickly.. Gotta admit tt's my own fault hehe..Yst cleaned ut her entire tank of all e leftover pellets n did 50% w/c, hope her appetite picks up soon =P btw she's 9.5inches now n swimming quite energetically.. Is an active bichir a happy one? Lol..