Yes, I agree about the CA blackworms. There are some in the For Sale/Trade section of this forum for a special price. I ordered mine months ago and still have a decent supply left. I also recommend Dawn's (Otterwoman) white worms. The combination has worked well for my very large family of an adult pair, 30 morphs and 20 larvae of CFBNs...
I exclusively fed my adult pair frozen and thawed bloodworms until I found this site when they reproduced, so they ate the bloodworms for 11 months but seem happy for the addition of live food.
Good luck,
Dana