Sometimes they will take flake/pellets. But don't bank on it, and certainly not immediately after import.
Pantodon hunts in a very specific way: it detects movement in roughly 90-degree arcs around each eye. Everything else is ignored. So, to start with you need to use forceps or similar (not fingers!) to place suitable food items (e.g., mosquito larvae) within a few cm of the head. Once the fish learns that things placed close to the head are food, they'll try other items, including flake.
Most people find fruit flies and insects found around the house useful first foods. Small crickets work well, too.
Cheers, Neale
Can an African Butterfly fish be trained to accept flakes or floating pellets? i've tried live worms and frozen foods but if he is eating...i haven't seen any evidence of it. it's been 3-4 days now and i'm kinda worried.