my O loved them ... and were acquired from a somewhat similar situation
It is funny seeing something that can stick out of his mouth. He would grab it and go sit in the corner for a while as he chewed it a little at a time. The first time I thought it was stuck in his throat because he kept it in his mouth so long.
He started expecting them and turning away food, so I haven't gave him any for a while, plus, I am vegan, so keeping shrimp around in my freezer or fridge is not my first choice. Frozen Bloodworms are sealed up enough and out of the way ... freeze dried krill can be kept with his other food. But, when they are around, it is nice to spoil the O now and then.