i'm so glad you got the cricket gut-load! if you don't feed that stuff to your crickets before feeding them to your pets, it's like giving them a big air-filled peice of chitin!
with these guys i would say it's okay to put the frozen bloodworm chunk right in there. as it melts the worms will come off and hopefully the newts will eat them. you can also melt them in the some water first. it doesn't really matter.
as for the box turtle, i wouldn't worry too much. is it winter where you are? what's the outside temp (even though the turt is inside)? even animals that are kept inside seem to know when it's winter and he very well may be feeling the winter and just not feel like eating. that's quite common in herps. i would just not feed him for a few days and then give him some of his favorites. he should love live nightcrawlers (big earthworms), banana, strawberry or dandelion greens. does he have a fluorescent uv bulb and a basking bulb above his tank? those would definately perk him up and, IMHO, all land turtles, tortoises, and basking aquatics should have a strip uv bulb anyway for proper bodily vitamin usage.
