Oh no sorry to hear about the bara fella , minor set back at least you've got another once they all start feeding you'll be on your way , jardinis are quite hardy fish aswell as baras so don't be tempted into massive water changes , better little and often so there's no dramatic changes , try give the jar a few silk or meal worms or even small piece of prawn for now if he's not on pellets , once he's grown and bit stronger you'll be able to try starve him onto them ( mine only eats hikari gloating sticks even at his size fussy bugger , good luck bro