try crickets,I always start my babies on the smallest that I can find in the stores...(not an issue now,since the gf breeds bugs )... never had a problem with babies refusing crickets.
If you just got him on the 11th, he's probably still super stressed about the move. It sometimes takes a few days for a Leo to eat after going through a move. I wouldnt stress about it yet, but definitely try crickets or phoenix worms or roaches in the meantime.
I second what @Laurah has said. Give him some time to settle in. Definitely try crickets. I find they're a bit of a hassle but they're really good at stimulating the appetite!