Silkworms are really not that hard to take care of. You can buy premade mulberry chow, or buy the powder and make it yourself (CHEAPER but kinda smells when you make it) lol. They have done well for me and I do not by any means take all precautions to "ensure" the food is 100% sterile when I put it in there. I keep my silkies in a 10 gallon rubbermaid tub, and there is a silkie care sheet on either mulberryfarms.com and/or californiasilkworms.com .
Roaches: There are different sizes, and I'm sure there are other people on here that know of the smaller species and the bigger species that can be used.
Roaches are healthy and they have little to no smell. Great food source.
Good luck Shana!
David - KDRKreatures
-----
KDRKreatures.com
Exotic Reptile Breeders - Specializing in Bearded Dragons
Email