fluker is not good for gutload.
use some fresh veggies for gutload crickets.
Romaine lettuce
Mustard Greens
Collard Greens
Kale
Carrots
Yams
Yellow Squash
Zucchini
Orange slices
Apple and potato peelings
Banana skins
broccoli
alfalfa
baby rice cereal
flake fish food