little update - he's eaten, not what i wanted him to eat but at least he's had something. had been fishing out guppy fry from the tank next to his. little fry were jumping everywhere and a few sploshed into his tank. ive never seen a fish move so fast, they were gone in seconds, all of them(!)
so at least i know he's eaten now
he likes live food.
now to get him onto pellets! maybe if i carve them into little guppy shapes and pull them through the water on a bit of thread? you know, just until he gets used to the taste?